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Full Discussion: A shell script to run a script which don't get terminated and send a pattern from the output by mail
Top Forums Shell Programming and Scripting A shell script to run a script which don't get terminated and send a pattern from the output by mail Post 303014385 by Sambit Sahu on Sunday 11th of March 2018 05:25:56 AM
Old 03-11-2018
Hi Don,

I will explain it in a better way. Linux is the operating system and using bash shell.

So the requirement is as below:

We have a script called testit_tas.sh to test the servers which don't get terminated and we pass CTRL+C to kill it everytime. Below is the content of the script:

Code:
!#/bin/bash

./ctftestdump 10.240.56.1 8100 querytas.txt

So when we run this script (./testit_tas.sh) we get this below output on the terminal and it don't get completed. So we kill it manually
Code:
[sasahu@cts-pro-mgmt-srv1 idc_test_tool]$ ./testit_tas.sh
./testit_tas.sh: line 1: !#/bin/bash: No such file or directory
Level Zero : trying to connect/close host 10.240.56.1 at port 8100...
in connect
out connect
Send:[5022=LoginUser|5028=red3|5029=red3|5026=1]
Send:[5022=QueryTas|4=564|5=EA|5045=1|5026=1003]
Send:[5022=QueryTas|4=193|5=E:CUSAN.E|5045=1|5026=1004]
Send:[5022=QueryTas|4=558|5=E|5045=1|5026=1005]
Send:[5022=QueryTas|4=627|5=E:VOD|5045=1|5026=1006]
Send:[5022=QueryTas|4=824|5=E:AASB-ME|5045=1|5026=1007]
Send:[5022=QueryTas|4=205|5=E:SHFIN|5045=1|5026=1008]
Send:[5022=QueryTas|4=216|5=E:2INVE|5045=1|5026=1009]
Send:[5022=QueryTas|4=257|5=E:AT00000FACC2-EUR|5045=1|5026=1010]
Send:[5022=QueryTas|4=873|5=E:AHAN|5045=1|5026=1011]
5026=1|5001=0<ETX>
5022=QueryTas|4=205|5=E:SHFIN|5045=1|5026=1008|5001=-46<ETX>
5022=QueryTas|4=824|5=E:AASB-ME|5045=1|5026=1007|5001=-46<ETX>
5022=QueryTas|4=216|5=E:2INVE|5045=1|5026=1009|5001=-46<ETX>
5001=-203|5026=1003<ETX>
5001=-203|5026=1004<ETX>
5001=-203|5026=1005<ETX>
5001=-203|5026=1010<ETX>
5001=-203|5026=1011<ETX>
^C[sasahu@cts-pro-mgmt-srv1 idc_test_tool]$

So from above output, we need to search the lines for 5001=-46<ETX> and capture these lines. -46 is error. So we want to capture this and alert only these lines over email to specific people.

Once this script is written, we will schedule it in crontab which will run 3 times to do this check.

Also, I know that to abort the script we can find the process id and kill it but am not sure how to include this.

TIA.

Regards,
Sambit
 

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LEARN ABOUT DEBIAN

kill

KILL(1) 							   User Commands							   KILL(1)

NAME

       kill - send a signal to a process

SYNOPSIS

       kill [options] <pid> [...]

DESCRIPTION

       The  default  signal  for kill is TERM.	Use -l or -L to list available signals.  Particularly useful signals include HUP, INT, KILL, STOP,
       CONT, and 0.  Alternate signals may be specified in three ways: -9, -SIGKILL or -KILL.  Negative PID values may be  used  to  choose  whole
       process	groups;  see  the  PGID  column  in ps command output.	A PID of -1 is special; it indicates all processes except the kill process
       itself and init.

OPTIONS

       <pid> [...]
	      Send signal to every <pid> listed.

       -<signal>
       -s <signal>
       --signal <signal>
	      Specify the signal to be sent.  The signal can be specified by using name or number.  The behavior of signals is explained  in  sig-
	      nal(7) manual page.

       -l, --list [signal]
	      List signal names.  This option has optional argument, which will convert signal number to signal name, or other way round.

       -L, --table
	      List signal names in a nice table.

       NOTES  Your shell (command line interpreter) may have a built-in kill command.  You may need to run the command described here as /bin/kill
	      to solve the conflict.

EXAMPLES

       kill -9 -1
	      Kill all processes you can kill.

       kill -l 11
	      Translate number 11 into a signal name.

       kill -L
	      List the available signal choices in a nice table.

       kill 123 543 2341 3453
	      Send the default signal, SIGTERM, to all those processes.

SEE ALSO

       kill(2), killall(1), nice(1), pkill(1), renice(1), signal(7), skill(1)

STANDARDS

       This command meets appropriate standards. The -L flag is Linux-specific.

AUTHOR

       Albert Cahalan <albert@users.sf.net> wrote kill in 1999 to replace a bsdutils one that was not standards  compliant.   The  util-linux  one
       might also work correctly.

REPORTING BUGS

       Please send bug reports to <procps@freelists.org>

procps-ng							   October 2011 							   KILL(1)
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