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what is getopts "d:f:g:h:" opt ??

 
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Top Forums UNIX for Dummies Questions & Answers what is getopts "d:f:g:h:" opt ??
# 1  
Old 06-04-2010
Error what is [B]getopts "d:f:g:h:"[/B] opt ??
hi friends..

can anybody tell me the meaning of :

Code:
getopts "d:f:g:h:" opt

thanx..
Smilie

Moderator's Comments:
Mod Comment Please use code tags, ty
Last edited by adityamitra; 06-04-2010 at 02:55 AM..
# 2  
Old 06-04-2010
Code:
getopts "d:f:g:h:" opt

d, f,g,h are the options which u have to give while starting ur script.
(they are command line parameter which ur script will take when execute)

in ur script it will be like

Code:
while getopts "d:f:g:h:" ur_var
do
case ${ur_var} in 
1) d=${optarg};;
2)f=${optarg};;
3)g=${optarg};;
4)h=${optarg};;
5)*=ERROR

then ur script will be checking if the parameters are entered properly or not....
 
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