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Full Discussion: Shell script validation using process.
Top Forums Shell Programming and Scripting Shell script validation using process. Post 302601864 by vininx on Friday 24th of February 2012 04:12:17 PM
Old 02-24-2012
Hi,
Actually, the script is invoked in background from harvest. So, In order to identify whether the script is invoked only from harvest and not in foreground or through anyother background process, I got the $PPID in myscript.ksh, it gives the details as,

myid1 22511 22510 0 02:53 ? 00:00:00 /usr/bin/ksh /tmp/har37sbp6
myid1 23346 22511 02:54 ? 00:00:00 /bin/ksh /home/myid1/myscript.ksh myid1 23366 23346 0 02:54 ? 00:00:00 grep 22511


But the process ("/usr/bin/ksh /tmp/har37sbp6") is forked by a parent harvest process,

myid1 22510 25146 0 02:53 ? 00:00:00 /host1harvest/dstart/harrefreshd 50000 /host1harvest/Harvestr/5

So, In the current shell script(myscrip.ksh) how can I get the parent's parent process name(i,e, 22510, /host1harvest/dstart/harrefreshd 50000 /host1harvest/Harvestr/5) and validate it for harvest string. Please advise.
 

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LEARN ABOUT OPENSOLARIS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)
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