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Shell Programming and Scripting
get env variable from last script
Post 302283722 by cfajohnson on Tuesday 3rd of February 2009 11:01:22 PM
02-04-2009
Quote:
Thanks alot, that almost worked, it ran the svcadm enable command instead of print the value ${INSTANCE} and it seems work for bash only, Can you write sh version to get value of ${INSTANCE} only, I need the value to check it's status with another cmd e.g 'svcs ${INSTANCE}?
It will work in any standard UNIX shell.
On some systems, /bin/sh is an old Bourne shell. Such systems should also have a POSIX shell, e.g. ksh.
Quote:
The last 2 expressions are hard to underdstand, Can you explain in details?
See Parameter Expansion in your shell man page.
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LEARN ABOUT SUNOS
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/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/pfcsh, /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list. Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)). FILES
/etc/shells lists shells on system SEE ALSO
vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4) SunOS 5.10 4 Jun 2001 shells(4)