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Top Forums Shell Programming and Scripting List file with variables expanded Post 302461728 by r1omen on Tuesday 12th of October 2010 06:05:01 AM
Old 10-12-2010
List file with variables expanded

Hello,

I have this problem.

I have script file, e.g.

#!/usr/bin/ksh
echo $MY_DIR
ls -lt $MY_DIR

I want to list the script but with MY_DIR variable expanded. E.g.

MY_DIR=/abc/xyz (in shell MY_DIR is set)

So I want to list the script and see:

#!/usr/bin/ksh
echo /abc/xyz
ls -lt /abc/xyz

I tried both:
a) while read line; do echo $line; done < script.sh
b) awk '{print $0}' script.sh

But both just list the script without substitutin $MY_DIR with its real value.

How to do this?
 

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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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