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Full Discussion: If condition shell script beginner
Top Forums Shell Programming and Scripting If condition shell script beginner Post 302970371 by fretagi on Wednesday 6th of April 2016 04:51:22 AM
Old 04-06-2016
Hi

ok, I have one server running HP-UX that has some processes ps -ef | grep ih,
Code:
#ps -ef | grep ih
 bscsrtx  4940     1  4 09:25:39 ?         0:21 rdh -rih
 bscsrtx  5086     1  0 09:26:19 ?         0:27 aih
 bscsrtx  5070     1  0 09:26:01 ?         0:00 fih -r4
 bscsrtx  5099     1  0 09:26:31 ?         0:00 prih
 bscsrtx  4936     1  0 09:25:32 ?         0:57 rdh -prih
    root 16109  3723  1 10:54:32 pts/td    0:00 grep ih
 bscsrtx  5095     1  0 09:26:25 ?         0:00 rih -t
 bscsrtx  4961     1  0 09:25:53 ?         0:04 dih -r -s60

that needs to run all the time. The idea of the script is to warn us by mail when this processes are not running.
So initially I created this script:
Code:
#!/bin/sh

> /tmp/fr/maillist.txt
ps -ef | grep '[i]h' > /tmp/fr/maillist.txt
if [ -s /tmp/fr/maillist.txt ] ; then
echo "Process is running"
else
cat /tmp/fr/maillist.txt | mailx -s "rating down" xxxx@yyyy.co.zz
fi

which is not doing its job.

Them I created this other version of the script, which also does not work:

Code:
#!/bin/sh

ps -ef | grep -v grep | grep ih > /dev/null

if [ $? -ne 1 ]; then

mailx -s "rating down" xxxx@yyyy.co.zz
fi

 

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LEARN ABOUT X11R4

zgrep

ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME

       zgrep - search possibly compressed files for a regular expression

SYNOPSIS

       zgrep [ grep_options ] [ -e ] pattern filename...

DESCRIPTION

       Zgrep  invokes  grep  on  compressed  or  gzipped  files.   These  grep  options  will  cause  zgrep  to  terminate  with  an  error  code:
       (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*).  All other options specified are passed directly to grep.  If no file is specified,  then  the
       standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and fed to grep.

       If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.

EXIT CODE

       2 - An option that is not supported was specified.

AUTHOR

       Charles Levert (charles@comm.polymtl.ca)

SEE ALSO

       grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)

                                                                                                                                          ZGREP(1)
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