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Full Discussion: net help with getopts
Top Forums Shell Programming and Scripting net help with getopts Post 302400086 by xiamin on Tuesday 2nd of March 2010 07:10:10 AM
Old 03-02-2010
Hi

Cannot use exit 1 as this is a fucntion and not a program in itself

If i set the line to [ $# -ne 2 ] or to [ $# -ne 1 ] how do i call this function from command line


Code:
#!/bin/sh
while getopts s: opt;
do
case ${opt} in
s) sid=${OPTARG} ;;
\?)echo "Usage : get_ora_home [-s ORACLE_SID]"
exit 1 ;;
esac
done
if [ $# -ne 2 ] ; then
echo "Usage: $(basename $0) [-s ] ORACLE_SID "
exit 2
fi
echo "ORATAB FOR $sid is"

regards
 

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echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.10 3 Aug 1994 echo(1B)
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