03-12-2010
Thanks for the reply. But the problem is dpr argument may or may not have an option. For example:
-d filename --> with option
-d -s id --> without option.
I need to handle both type of arguments as I have shown above. Both are valid and i need to handle them.
So please suggest me some way.
Thanks
Sachin
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getopt(1) General Commands Manual getopt(1)
NAME
getopt - Parses command line flags and arguments
SYNOPSIS
getopt format tokens
DESCRIPTION
The getopt command is used to parse a list of tokens using a format that specifies expected flags and arguments. A flag is a single ASCII
letter and, when followed by a : (colon), is expected to take a modifying argument that may or may not be separated from it by one or more
tabs or spaces. (You can include multi-byte characters in arguments, but not as flag letters.)
The getopt command completes processing when it has read all tokens or when it encounters the special token -- (double dash). It then out-
puts the processed flags, a --, and any remaining tokens.
If a token fails to match a flag, getopt writes a message to standard error.
NOTES
In the csh, use the following command to run getopt:
set argv=`getopt flag_string $*`
EXAMPLES
The following is an example of the use of getopt in a skeleton shell script to parse options:
#!/bin/sh # parse command line into arguments set -- `getopt a:bc $*` # check result of parsing if [ $? != 0 ] then
exit 1 fi while [ $1 != -- ] do
case $1 in
-a) # set up the -a flag
AFLG=1
AARG=$2
shift;;
-b) # set up the -b flag
BFLG=1;;
-c) # set up the -c flag
CFLG=1;;
esac
shift # next flag done shift # skip double dash # now do the work . . .
The following are all equivalent arguments to the script:
-a ARG -b -c -- A B C -a ARG -bc -- A B C -aARG -b -c -- A B C -b -c -a ARG -- A B C
SEE ALSO
Commands: sh(1)
Functions: getopt(3)
getopt(1)