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Top Forums Shell Programming and Scripting Adding Text To Middle Of File Post 302388002 by clx on Tuesday 19th of January 2010 05:45:15 AM
Old 01-19-2010
Quote:
Originally Posted by BundBash
Thanks Scrutinizer.....that is working great.....can u briefly explain why you add a < so i can understand......am a new starter Smilie
you can check by own.

Code:
/home->wc -l file
11 file
/home->wc -l < file
11
/home->

"<" is the indirection, which is sending file o/p to the command line by line.
as a result of that, you will get the line count only. ( unlikely the filename also which you get in the another command.)

if you use first command than you will have to suppress the filename part.
 

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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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