From woodbrian77 at gmail.com  Wed Oct  2 11:49:48 2019
From: woodbrian77 at gmail.com (Brian Wood)
Date: Wed, 2 Oct 2019 11:49:48 -0500
Subject: [tclug-list] Stream Control Transmission Protocol (SCTP)
Message-ID: <CABWFOjvzz-j4iw9LBgNm32m6ZWvHgR7Pk3CC3xxCnDspQpJxUA@mail.gmail.com>

   Shalom

I've been thinking of converting my TCP-based code
generator to SCTP.  Finding info on SCTP is not as
easy though as TCP.  Have you used SCTP?  On
openSUSE, I can compile this:

int sd=::socket(PF_INET,SOCK_STREAM,IPPROTO_SCTP);

with just this file:
https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/Buffer.hh

but on FreeBSD, I have to also
#include<netinet/sctp.h>

.  Are there other Posix systems where you have to include
that file?

I read that "SCTP frequently sends heartbeat messages to
test the state of connection."  I'm not sure I want it to do that
frequently.  Is that configurable?  Thank you in advance.


Brian
Ebenezer Enterprises - Want to get out of Murderapolis?
I'm looking for a roommate in the Roseville area.
http://webEbenezer.net
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From woodbrian77 at gmail.com  Sun Oct  6 10:38:29 2019
From: woodbrian77 at gmail.com (Brian Wood)
Date: Sun, 6 Oct 2019 10:38:29 -0500
Subject: [tclug-list] Stream Control Transmission Protocol (SCTP)
In-Reply-To: <CABWFOjvzz-j4iw9LBgNm32m6ZWvHgR7Pk3CC3xxCnDspQpJxUA@mail.gmail.com>
References: <CABWFOjvzz-j4iw9LBgNm32m6ZWvHgR7Pk3CC3xxCnDspQpJxUA@mail.gmail.com>
Message-ID: <CABWFOjurx99QnFNsNQVBgC4V=719u=94N1zm945k1y4V6dmRmQ@mail.gmail.com>

On Wed, Oct 2, 2019 at 11:49 AM Brian Wood <woodbrian77 at gmail.com> wrote:

>    Shalom
>
> I've been thinking of converting my TCP-based code
> generator to SCTP.  Finding info on SCTP is not as
> easy though as TCP.
>

I've made some progress with this, mainly in the 'login' function:
https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/tiers/cmwA.cc



> Have you used SCTP?  On
> openSUSE, I can compile this:
>
> int sd=::socket(PF_INET,SOCK_STREAM,IPPROTO_SCTP);
>
> with just this file:
> https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/Buffer.hh
>
> but on FreeBSD, I have to also
> #include<netinet/sctp.h>
>
> .  Are there other Posix systems where you have to include
> that file?
>
> I read that "SCTP frequently sends heartbeat messages to
> test the state of connection."  I'm not sure I want it to do that
> frequently.  Is that configurable?  Thank you in advance.
>
>
On my openSUSE and FreeBSD systems, the heartbeat interval
is set to 30 seconds.  That's more often than I need it.  Is there
a way to change that from within the program I linked to?


Brian
Ebenezer Enterprises - In G-d we trust.
http://webEbenezer.net
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From eng at pinenet.com  Sun Oct  6 23:34:13 2019
From: eng at pinenet.com (Rick Engebretson)
Date: Sun, 6 Oct 2019 23:34:13 -0500
Subject: [tclug-list] Stream Control Transmission Protocol (SCTP)
In-Reply-To: <CABWFOjurx99QnFNsNQVBgC4V=719u=94N1zm945k1y4V6dmRmQ@mail.gmail.com>
References: <CABWFOjvzz-j4iw9LBgNm32m6ZWvHgR7Pk3CC3xxCnDspQpJxUA@mail.gmail.com>
 <CABWFOjurx99QnFNsNQVBgC4V=719u=94N1zm945k1y4V6dmRmQ@mail.gmail.com>
Message-ID: <3cd4c0dc-f656-5c9b-a96d-96e3fc5b7d12@pinenet.com>

I can't help with your programming adventure, but since you use openSUSE 
and low level socket functions I might have a suggestion or two.

First, what version of openSUSE do you use??? I have several installed 
on several machines. Personally, I usually prefer old 32 bit openSUSE 
12.2 for core programming. I like the 12.3, 13.1 for their desktop 
themes, 13.2 for my "modern" internet play, 42.3 Leap is great for 
exploring 64 bit, but 15.1 is a weak programming version.

My reason is the lack of Tkman on 15.1. You can really explore the man 
pages with hyperlinks, multiple open pages (like xman), and exploring 
volumes. On a 64 bit version you have different directories for 
different libraries, which adds a lot of confusion. And I'm not sure how 
posix compliant BSD is.

Often I dig through the C header files to create FreePascal library 
access. I did a fair amount with Unix local sockets and it's worth 
looking at the header file for lots of info. It might compile, but you 
don't know what it does. openSUSE also usually provides an HTML 
documentation of the Gnu-C library.

Without looking at some recent (last winter) programming fun, I seem to 
remember trying socket(Unix, Packet,??) and getting good message 
boundaries not seen in socket(Unix, Stream, ??). And IIRC, the third 
parameter might or might not mean anything.

Of course this has nothing to do with your question. Except digging 
around the man pages and include files, even source code and kernel 
documentation has been a real eye opener into what an extraordinary 
system linux is.

As the SUSE team says; "Have a lot of fun!"


Brian Wood wrote:
> On Wed, Oct 2, 2019 at 11:49 AM Brian Wood <woodbrian77 at gmail.com
> <mailto:woodbrian77 at gmail.com>> wrote:
>
>        Shalom
>
>     I've been thinking of converting my TCP-based code
>     generator to SCTP.  Finding info on SCTP is not as
>     easy though as TCP.
>
>
> I've made some progress with this, mainly in the 'login' function:
> https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/tiers/cmwA.cc
>
>
>     Have you used SCTP?  On
>     openSUSE, I can compile this:
>
>     int sd=::socket(PF_INET,SOCK_STREAM,IPPROTO_SCTP);
>
>     with just this file:
>     https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/Buffer.hh
>
>     but on FreeBSD, I have to also
>     #include<netinet/sctp.h>
>
>     .  Are there other Posix systems where you have to include
>     that file?
>
>     I read that "SCTP frequently sends heartbeat messages to
>     test the state of connection."  I'm not sure I want it to do that
>     frequently.  Is that configurable?  Thank you in advance.
>
>
> On my openSUSE and FreeBSD systems, the heartbeat interval
> is set to 30 seconds.  That's more often than I need it.  Is there
> a way to change that from within the program I linked to?
>
>
> Brian
> Ebenezer Enterprises - In G-d we trust.
> http://webEbenezer.net
>
>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>

From eng at pinenet.com  Mon Oct  7 00:02:55 2019
From: eng at pinenet.com (Rick Engebretson)
Date: Mon, 7 Oct 2019 00:02:55 -0500
Subject: [tclug-list] Stream Control Transmission Protocol (SCTP)
In-Reply-To: <3cd4c0dc-f656-5c9b-a96d-96e3fc5b7d12@pinenet.com>
References: <CABWFOjvzz-j4iw9LBgNm32m6ZWvHgR7Pk3CC3xxCnDspQpJxUA@mail.gmail.com>
 <CABWFOjurx99QnFNsNQVBgC4V=719u=94N1zm945k1y4V6dmRmQ@mail.gmail.com>
 <3cd4c0dc-f656-5c9b-a96d-96e3fc5b7d12@pinenet.com>
Message-ID: <9f10a9ed-081a-f9d3-f246-06f8d9e0a4e4@pinenet.com>

It also might be worth installing a good text editor. I like "nedit" 
partly because it has a great search tool. You can install a downloaded 
binary nedit if you install "libXp". But I'm sure there are other 
editors. It helps to search large header and source files.

Also, the file manager "Dolphin" has a great, even if clumsy, search tool.

Again, these are just personal experiences. Saved me some time.

Rick Engebretson wrote:
> I can't help with your programming adventure, but since you use openSUSE
> and low level socket functions I might have a suggestion or two.
>
> First, what version of openSUSE do you use??? I have several installed
> on several machines. Personally, I usually prefer old 32 bit openSUSE
> 12.2 for core programming. I like the 12.3, 13.1 for their desktop
> themes, 13.2 for my "modern" internet play, 42.3 Leap is great for
> exploring 64 bit, but 15.1 is a weak programming version.
>
> My reason is the lack of Tkman on 15.1. You can really explore the man
> pages with hyperlinks, multiple open pages (like xman), and exploring
> volumes. On a 64 bit version you have different directories for
> different libraries, which adds a lot of confusion. And I'm not sure how
> posix compliant BSD is.
>
> Often I dig through the C header files to create FreePascal library
> access. I did a fair amount with Unix local sockets and it's worth
> looking at the header file for lots of info. It might compile, but you
> don't know what it does. openSUSE also usually provides an HTML
> documentation of the Gnu-C library.
>
> Without looking at some recent (last winter) programming fun, I seem to
> remember trying socket(Unix, Packet,??) and getting good message
> boundaries not seen in socket(Unix, Stream, ??). And IIRC, the third
> parameter might or might not mean anything.
>
> Of course this has nothing to do with your question. Except digging
> around the man pages and include files, even source code and kernel
> documentation has been a real eye opener into what an extraordinary
> system linux is.
>
> As the SUSE team says; "Have a lot of fun!"
>
>
> Brian Wood wrote:
>> On Wed, Oct 2, 2019 at 11:49 AM Brian Wood <woodbrian77 at gmail.com
>> <mailto:woodbrian77 at gmail.com>> wrote:
>>
>>        Shalom
>>
>>     I've been thinking of converting my TCP-based code
>>     generator to SCTP.  Finding info on SCTP is not as
>>     easy though as TCP.
>>
>>
>> I've made some progress with this, mainly in the 'login' function:
>> https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/tiers/cmwA.cc
>>
>>
>>
>>     Have you used SCTP?  On
>>     openSUSE, I can compile this:
>>
>>     int sd=::socket(PF_INET,SOCK_STREAM,IPPROTO_SCTP);
>>
>>     with just this file:
>>
>> https://github.com/Ebenezer-group/onwards/blob/master/src/cmw/Buffer.hh
>>
>>     but on FreeBSD, I have to also
>>     #include<netinet/sctp.h>
>>
>>     .  Are there other Posix systems where you have to include
>>     that file?
>>
>>     I read that "SCTP frequently sends heartbeat messages to
>>     test the state of connection."  I'm not sure I want it to do that
>>     frequently.  Is that configurable?  Thank you in advance.
>>
>>
>> On my openSUSE and FreeBSD systems, the heartbeat interval
>> is set to 30 seconds.  That's more often than I need it.  Is there
>> a way to change that from within the program I linked to?
>>
>>
>> Brian
>> Ebenezer Enterprises - In G-d we trust.
>> http://webEbenezer.net
>>
>>
>> _______________________________________________
>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
>> tclug-list at mn-linux.org
>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list

From woodbrian77 at gmail.com  Sun Oct 13 20:21:48 2019
From: woodbrian77 at gmail.com (Brian Wood)
Date: Sun, 13 Oct 2019 20:21:48 -0500
Subject: [tclug-list] Trident possibly moving to Linux
Message-ID: <CABWFOjt93CvmdEfr0UFa8NDSzs0Ooiq3GOwcpm5v3beu7=YA6Q@mail.gmail.com>

  Shalom

https://www.reddit.com/r/freebsd/comments/dh1l77/project_trident_moving_on_from_freebsd_to_a/


I'm sorry to hear that and wish they would reconsider.  I'm not
planning to follow them in that and will use something like
GhostBSD instead.


Brian
Ebenezer Enterprises - In G-d we trust.
https://github.com/Ebenezer-group/onwards
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From admin at lctn.org  Wed Oct 23 12:39:27 2019
From: admin at lctn.org (admin at lctn.org)
Date: Wed, 23 Oct 2019 12:39:27 -0500 (CDT)
Subject: [tclug-list] bash script not working properly
Message-ID: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>

I have a simple bash script (ws.sh), with the following 2 commands: 

#!/bin/bash 

tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng 

wait 

/home/raymond/movit.sh 

Movit.sh: 


#!/bin/bash 
mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng 
echo "All Done!" 

The first command always works properly but the second does not run via cron. However, running the script (ws,sh) via the command line executes properly. I have tried sleep and wait between commands but nothing works, so far. 

Ideas? 



Raymond Norton 
LCTN 
952.955.7766 
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From droidjd at gmail.com  Wed Oct 23 13:01:00 2019
From: droidjd at gmail.com (Andrew Dahl)
Date: Wed, 23 Oct 2019 13:01:00 -0500
Subject: [tclug-list] bash script not working properly
In-Reply-To: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
Message-ID: <CAFjzMdxa36UnmpHkSpwpKoNYFM8wbra7TmQ4hpFcbFTyxFRBVQ@mail.gmail.com>

I assume this is in your raymond user's crontab?  It /should/ be running in
your home directory, but maybe you need to add a cd before running mv (or
use absolute paths in your mv)

You could append " 2>&1 /path/to/some/log" to the line in your crontab to
get output/errors into a log to try troubleshooting that way.

Else, I don't immediately see any obvious errors

On Wed, Oct 23, 2019 at 12:48 PM <admin at lctn.org> wrote:

> I have a simple bash script (ws.sh), with the following 2 commands:
>
> #!/bin/bash
>
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
>
> wait
>
> /home/raymond/movit.sh
>
> Movit.sh:
>
>
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
>
> The first command always works properly but the second does not run via
> cron. However, running the script (ws,sh) via the command line executes
> properly. I have tried  sleep and wait between commands but nothing works,
> so far.
>
> Ideas?
>
>
>
> Raymond Norton
> LCTN
> 952.955.7766
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
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From ryan.coleman at cwis.biz  Wed Oct 23 13:09:04 2019
From: ryan.coleman at cwis.biz (Ryan Coleman)
Date: Wed, 23 Oct 2019 13:09:04 -0500
Subject: [tclug-list] bash script not working properly
In-Reply-To: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
Message-ID: <50101958-7164-4E2B-8AA1-F0D386E3604D@cwis.biz>

…. is movit.sh set up with the right permissions?



> On Oct 23, 2019, at 12:39 PM, admin at lctn.org wrote:
> 
> I have a simple bash script (ws.sh), with the following 2 commands:
> 
> #!/bin/bash
> 
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
> 
> wait
> 
> /home/raymond/movit.sh
> 
> Movit.sh:
> 
> 
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
> 
> The first command always works properly but the second does not run via cron. However, running the script (ws,sh) via the command line executes properly. I have tried  sleep and wait between commands but nothing works, so far.
> 
> Ideas?
> 
> 
> 
> Raymond Norton
> LCTN
> 952.955.7766
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list

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From nassarmu at gmail.com  Wed Oct 23 13:09:44 2019
From: nassarmu at gmail.com (Munir Nassar)
Date: Wed, 23 Oct 2019 13:09:44 -0500
Subject: [tclug-list] bash script not working properly
In-Reply-To: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
Message-ID: <CAKpMjPjuLNmU21t=20z+Phagr8NbXzE4DoNsGAOsxn8JpJtP=g@mail.gmail.com>

I suspect that the wait has something to do with it, is the idea to
wait for the tshark to complete?

I would use a sleep 5 before calling movit.sh. speaking of which, why
now put the mv commands at the end of the ts.sh? why bother calling a
separate script at all?

Finally, you should be using the -b option to tshark to put it in
multiple output mode to collect pcaps over time something like -b
duration:60

On Wed, Oct 23, 2019 at 12:48 PM <admin at lctn.org> wrote:
>
> I have a simple bash script (ws.sh), with the following 2 commands:
>
> #!/bin/bash
>
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
>
> wait
>
> /home/raymond/movit.sh
>
> Movit.sh:
>
>
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
>
> The first command always works properly but the second does not run via cron. However, running the script (ws,sh) via the command line executes properly. I have tried  sleep and wait between commands but nothing works, so far.
>
> Ideas?
>
>
>
> Raymond Norton
> LCTN
> 952.955.7766
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list

From sfertch at gmail.com  Wed Oct 23 13:18:06 2019
From: sfertch at gmail.com (Shawn Fertch)
Date: Wed, 23 Oct 2019 13:18:06 -0500
Subject: [tclug-list] bash script not working properly
In-Reply-To: <50101958-7164-4E2B-8AA1-F0D386E3604D@cwis.biz>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
 <50101958-7164-4E2B-8AA1-F0D386E3604D@cwis.biz>
Message-ID: <CAJCD7j5ZXDxVBuF+ewTqDj9s4ZV=5Q0u219KPJWSsa8z58F6Rw@mail.gmail.com>

I would into profile settings, variables, and if it errors because it is
expecting a tty

On Wed, Oct 23, 2019, 13:12 Ryan Coleman <ryan.coleman at cwis.biz> wrote:

> …. is movit.sh set up with the right permissions?
>
>
>
> On Oct 23, 2019, at 12:39 PM, admin at lctn.org wrote:
>
> I have a simple bash script (ws.sh), with the following 2 commands:
>
> #!/bin/bash
>
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
>
> wait
>
> /home/raymond/movit.sh
>
> Movit.sh:
>
>
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
>
> The first command always works properly but the second does not run via
> cron. However, running the script (ws,sh) via the command line executes
> properly. I have tried  sleep and wait between commands but nothing works,
> so far.
>
> Ideas?
>
>
>
> Raymond Norton
> LCTN
> 952.955.7766
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
>
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
>
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From admin at lctn.org  Wed Oct 23 13:18:58 2019
From: admin at lctn.org (admin at lctn.org)
Date: Wed, 23 Oct 2019 13:18:58 -0500 (CDT)
Subject: [tclug-list] bash script not working properly
In-Reply-To: <CAKpMjPjuLNmU21t=20z+Phagr8NbXzE4DoNsGAOsxn8JpJtP=g@mail.gmail.com>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
 <CAKpMjPjuLNmU21t=20z+Phagr8NbXzE4DoNsGAOsxn8JpJtP=g@mail.gmail.com>
Message-ID: <1754492162.16381.1571854738708.JavaMail.zimbra@lctn.org>


"why bother calling a
separate script at all?"

Because, I don't want the capture files written over if tshark is launched multiple times in a short period of time.

Thank you for the -b option. I believe I need that.


----- Original Message -----
From: "Munir Nassar" <nassarmu at gmail.com>
To: "tclug-list" <tclug-list at mn-linux.org>
Sent: Wednesday, October 23, 2019 1:09:44 PM
Subject: Re: [tclug-list] bash script not working properly

I suspect that the wait has something to do with it, is the idea to
wait for the tshark to complete?

I would use a sleep 5 before calling movit.sh. speaking of which, why
now put the mv commands at the end of the ts.sh? why bother calling a
separate script at all?

Finally, you should be using the -b option to tshark to put it in
multiple output mode to collect pcaps over time something like -b
duration:60

On Wed, Oct 23, 2019 at 12:48 PM <admin at lctn.org> wrote:
>
> I have a simple bash script (ws.sh), with the following 2 commands:
>
> #!/bin/bash
>
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
>
> wait
>
> /home/raymond/movit.sh
>
> Movit.sh:
>
>
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
>
> The first command always works properly but the second does not run via cron. However, running the script (ws,sh) via the command line executes properly. I have tried  sleep and wait between commands but nothing works, so far.
>
> Ideas?
>
>
>
> Raymond Norton
> LCTN
> 952.955.7766
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
_______________________________________________
TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
tclug-list at mn-linux.org
http://mailman.mn-linux.org/mailman/listinfo/tclug-list

From joel.breazeale at gmail.com  Thu Oct 24 19:54:26 2019
From: joel.breazeale at gmail.com (Joel Breazeale)
Date: Thu, 24 Oct 2019 19:54:26 -0500
Subject: [tclug-list] bash script not working properly
In-Reply-To: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
Message-ID: <CALUJTM49sdb2puezQBSshGDVw6tWHm_2Y1RaHBJk6p=TZ83rqA@mail.gmail.com>

I'll bite.

I notice you use capture.pcapng in Moveit.sh.  How about fully qualifying
the path with /home/raymond/capture.pcapng?

Are you getting an error message from the failure?  If so what is that
error?



On Wed, Oct 23, 2019 at 12:48 PM <admin at lctn.org> wrote:
>
> I have a simple bash script (ws.sh), with the following 2 commands:
>
> #!/bin/bash
>
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
>
> wait
>
> /home/raymond/movit.sh
>
> Movit.sh:
>
>
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
>
> The first command always works properly but the second does not run via
cron. However, running the script (ws,sh) via the command line executes
properly. I have tried  sleep and wait between commands but nothing works,
so far.
>
> Ideas?
>
>
>
> Raymond Norton
> LCTN
> 952.955.7766
> _______________________________________________
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota
> tclug-list at mn-linux.org
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list
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From admin at lctn.org  Thu Oct 24 21:30:00 2019
From: admin at lctn.org (admin at lctn.org)
Date: Thu, 24 Oct 2019 21:30:00 -0500 (CDT)
Subject: [tclug-list] bash script not working properly
In-Reply-To: <CALUJTM49sdb2puezQBSshGDVw6tWHm_2Y1RaHBJk6p=TZ83rqA@mail.gmail.com>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
 <CALUJTM49sdb2puezQBSshGDVw6tWHm_2Y1RaHBJk6p=TZ83rqA@mail.gmail.com>
Message-ID: <1889721780.17918.1571970600241.JavaMail.zimbra@lctn.org>

It only errs out if I run the script every 15 seconds (not show in post). The script was designed to run every 15 seconds and if a ping failed it runs tshark for a minute. We have a very evasive network issue, that comes and goes in a minute or less and needed a way to run a capture in the moment. I set the script to run every minute, instead and everything works fine, outside of the problem occurring 15 seconds later and ending before the next minute :) 


Thanks for checking 


From: "Joel Breazeale" <joel.breazeale at gmail.com> 
To: "tclug-list" <tclug-list at mn-linux.org> 
Sent: Thursday, October 24, 2019 7:54:26 PM 
Subject: Re: [tclug-list] bash script not working properly 

I'll bite. 
I notice you use capture.pcapng in Moveit.sh. How about fully qualifying the path with /home/raymond/capture.pcapng? 

Are you getting an error message from the failure? If so what is that error? 



On Wed, Oct 23, 2019 at 12:48 PM < admin at lctn.org > wrote: 
> 
> I have a simple bash script (ws.sh), with the following 2 commands: 
> 
> #!/bin/bash 
> 
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng 
> 
> wait 
> 
> /home/raymond/movit.sh 
> 
> Movit.sh: 
> 
> 
> #!/bin/bash 
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng 
> echo "All Done!" 
> 
> The first command always works properly but the second does not run via cron. However, running the script (ws,sh) via the command line executes properly. I have tried sleep and wait between commands but nothing works, so far. 
> 
> Ideas? 
> 
> 
> 
> Raymond Norton 
> LCTN 
> 952.955.7766 
> _______________________________________________ 
> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota 
> tclug-list at mn-linux.org 
> http://mailman.mn-linux.org/mailman/listinfo/tclug-list 

_______________________________________________ 
TCLUG Mailing List - Minneapolis/St. Paul, Minnesota 
tclug-list at mn-linux.org 
http://mailman.mn-linux.org/mailman/listinfo/tclug-list 
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From mbmiller+l at gmail.com  Wed Oct 30 19:40:56 2019
From: mbmiller+l at gmail.com (Mike Miller)
Date: Wed, 30 Oct 2019 19:40:56 -0500 (CDT)
Subject: [tclug-list] bash script not working properly
In-Reply-To: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
References: <1908863466.16253.1571852367691.JavaMail.zimbra@lctn.org>
Message-ID: <alpine.DEB.2.21.1910301925510.6882@taxahome2>

Could the problem be with the way you need to make files in rapid 
succession, changing their names and sometimes not getting that done fast 
enough?  Could you switch the order around a bit like this?:

DATE=$(date +%F-%H:%M:%S)
touch /home/raymond/${DATE}.pcapng
tshark -i enp1s0 -a duration:60 -w /home/raymond/${DATE}.pcapng
echo "All Done!"

I dropped the 1 from the filename and added seconds so that doing more 
than one per minute isn't a problem.  It's just one script instead of two. 
If another starts before an earlier one finishes, you probably won't have 
a problem.

Mike


On Wed, 23 Oct 2019, admin at lctn.org wrote:

> I have a simple bash script (ws.sh), with the following 2 commands:
>
> #!/bin/bash
>
> tshark -i enp1s0 -a duration:60 -w /home/raymond/capture.pcapng
>
> wait
>
> /home/raymond/movit.sh
>
> Movit.sh:
>
>
> #!/bin/bash
> mv capture.pcapng $(date +%F-%H:%M)1.pcapng && touch capture.pcapng
> echo "All Done!"
>
> The first command always works properly but the second does not run via cron. However, running the script (ws,sh) via the command line executes properly. I have tried sleep and wait between commands but nothing works, so far.
>
> Ideas?
>
>
>
> Raymond Norton
> LCTN
> 952.955.7766
>

From mbmiller+l at gmail.com  Wed Oct 30 19:15:02 2019
From: mbmiller+l at gmail.com (Mike Miller)
Date: Wed, 30 Oct 2019 19:15:02 -0500 (CDT)
Subject: [tclug-list] fixing broken Ubuntu after failed 19.10 upgrade
 [SOLVED]
Message-ID: <alpine.DEB.2.21.1910301830520.6882@taxahome2>

I think I got this right and I just want to share what happened.  I was 
upgrading, but I walked away and let it run.  When I came back the screen 
was black with a flashing underscore in the upper left corner.  I waited a 
few minutes, nothing, so I tried the usual tricks to return it to life, 
nothing again, so I powered it off.  When it came back up, it seemed to 
mostly work, but it couldn't load Gnome and it gave me a white screen 
announcing that it had failed and I needed to log off and try again.  I 
did that and got to the login screen, but after that I couldn't log in -- 
it always went back to the white fail screen.

Then I searched the web and found this:

How To Fix Broken Ubuntu OS Without Reinstalling It
https://www.ostechnix.com/how-to-fix-broken-ubuntu-os-without-reinstalling-it/

I could ssh into the box, so I did it that way, using copy/paste from the 
web page.  And it seemed to work.  In case someday that web page is gone, 
these were the commands:

sudo rm /var/lib/apt/lists/lock
sudo rm /var/lib/dpkg/lock
sudo rm /var/lib/dpkg/lock-frontend
sudo dpkg --configure -a
sudo apt clean
sudo apt update --fix-missing
sudo apt install -f
sudo dpkg --configure -a
sudo apt upgrade
sudo apt dist-upgrade
sudo reboot

After that it worked perfectly.  For some reason the time was not being 
set automatically, so I went here...

Settings > Details > Date & Time

...and activated "Automatic Date & Time".  That fixed it.

I think I'm all set, but let me know if you see anything wrong with those 
commands.  Is there anything more I need to do?

Thanks in advance.

Mike