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Shell Programming and Scripting

passing parameters to the script

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# 1  
Old 05-06-2012
passing parameters to the script
how can i make a script to run only when parameters are given,
if parameters are not given it should through an error , saying "please enter a parameter"

for ex: i want a find command to run only when the parameters are given
# 2  
Old 05-06-2012
if $# is 0, it means no parameters were passed to the script.
# 3  
Old 05-06-2012
Thanks For Clue,sorted it outSmilie
# 4  
Old 05-06-2012
Another way to test:
Code:
if [ "$1" = '' ]; then 
#no arguments given, exit
fi

# 5  
Old 05-06-2012
@tukuyomi:
Code:
$ cat test.sh
echo "\$# \"$#\""
echo "\$1 \"$1\""
echo "\$2 \"$2\""
if [ "$1" = '' ]; then 
  echo no arguments given
fi

$ ./test.sh
$# "0"
$1 ""
$2 ""
no arguments given

$ ./test.sh "" 2
$# "2"
$1 ""
$2 "2"
no arguments given

This User Gave Thanks to Scrutinizer For This Post:
tukuyomi
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