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Full Discussion: Grep in Shell script
Top Forums Shell Programming and Scripting Grep in Shell script Post 302489308 by ap2112 on Thursday 20th of January 2011 06:54:59 AM
Old 01-20-2011
Grep in Shell script

hi guys

very new to this game so excuse my ignorance. I need to create a script that simply greps for a text string and then outputs a message depending on whether the text string is there or not. The script I have setup is below, but whenever I run it I get the following error:

Code:
./LogCheck.sh[8]: TIMEOUT=:  not found
./LogCheck.sh[10]: ${TIMEOUT}: bad substitution

Sure this is a schoolboy error, but any advise greatly appreciated

Thanks,
A.

Code:
#!/bin/ksh
##################################################################################################
                                                                                                #
# This script checks the log file for timeouts                           #
##################################################################################################
 
TIMEOUT=`tail -5000 /dir1/logs/logfile.log | grep "has timed out and is not currently tradeable" | tail -1`;
 
echo ${TIMEOUT};
 
if [ ! -z ${TIMEOUT} ]; then
        echo "Timeout Alert";
else
        echo "No Timeouts";

Moderator's Comments:
Mod Comment Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability, thanks.

Last edited by zaxxon; 01-20-2011 at 08:03 AM.. Reason: code tags
 

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TIMEOUT(1)							   User Commands							TIMEOUT(1)

NAME
timeout - run a command with a time limit SYNOPSIS
timeout [OPTION] DURATION COMMAND [ARG]... timeout [OPTION] DESCRIPTION
Start COMMAND, and kill it if still running after DURATION. Mandatory arguments to long options are mandatory for short options too. --preserve-status exit with the same status as COMMAND, even when the command times out --foreground when not running timeout directly from a shell prompt, allow COMMAND to read from the TTY and get TTY signals; in this mode, children of COMMAND will not be timed out -k, --kill-after=DURATION also send a KILL signal if COMMAND is still running this long after the initial signal was sent -s, --signal=SIGNAL specify the signal to be sent on timeout; SIGNAL may be a name like 'HUP' or a number; see 'kill -l' for a list of signals --help display this help and exit --version output version information and exit DURATION is a floating point number with an optional suffix: 's' for seconds (the default), 'm' for minutes, 'h' for hours or 'd' for days. If the command times out, and --preserve-status is not set, then exit with status 124. Otherwise, exit with the status of COMMAND. If no signal is specified, send the TERM signal upon timeout. The TERM signal kills any process that does not block or catch that signal. It may be necessary to use the KILL (9) signal, since this signal cannot be caught, in which case the exit status is 128+9 rather than 124. BUGS
Some platforms don't currently support timeouts beyond the year 2038. AUTHOR
Written by Padraig Brady. REPORTING BUGS
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report timeout translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2017 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
kill(1) Full documentation at: <http://www.gnu.org/software/coreutils/timeout> or available locally via: info '(coreutils) timeout invocation' GNU coreutils 8.28 January 2018 TIMEOUT(1)
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