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Top Forums Shell Programming and Scripting comparing variables in an if statement Post 302604334 by habuchas on Sunday 4th of March 2012 01:16:56 PM
Old 03-04-2012
Thank you for the replies. The placement of 'then' was important as was the space after 'if' ........Thank you, Agama! However I still needed further modification. Here is the script that works:
Code:
#!/bin/bash
#timetest
TIMENOW="$(date)"
T1=12:00:00
echo $TIMENOW >timenow
cat timenow |cut -f4 -d' ' >time1
T2=$(sed -n "${1}p" time1)
echo "T1 = " $T1
echo "T2 = " $T2
if [[ $T1 < $T2 ]] #or [ $T1 \< $T2 ] for comparing ascii strings
 then
  echo $T1 
 else
  echo $T2 
fi


Last edited by Scott; 03-04-2012 at 04:13 PM.. Reason: Code tags
 

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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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