Using sed inside shellscript Post: 302974586

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Top Forums Shell Programming and Scripting Using sed inside shellscript Post 302974586 by RavinderSingh13 on Wednesday 1st of June 2016 05:44:46 AM

06-01-2016

Moderator

Quote:

Originally Posted by gotamp

Hi All,
I am trying to use sed command inside a shell script.
The same sed command is working on command line, however its not working while using inside a shell script.
From various sources i found , it could be done by using -i option, but its not working as well.

Code:

sed 's/something/otherone/g' inputfile

its working perfectly filne while using on command line.

Code:

#! /bin/ksh
sed 's/something/otherone/g' inputfile
#/usr/bin/sed 's/something/otherone/g' inputfile
#/usr/bin/sed 's/something/otherone/g' full/path/inputfile

Tried using absolute path of sed, and inputfile but still its not working.
ANy pointer on this please.
NOTE: I am using SunOS
Thanks
Goutam

Hello gotamp,

If I am seeing it correctly you have space in between #! and /bin/ksh in your shebang, try without the space as #!/bin/ksh and let me know how it goes then.

Thanks,
R. Singh

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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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