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08-25-2009
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Don't wait for "read line"
Hi I am writing a bash script on Solaris, that should take n arguments, either appended to the script or taken as output from the last command (similar to grep). What I don't want is that the script waits for user input. In other words: Possibility 1: Code:
script.sh arg1 arg2 arg3 ... Possibility 2: Code:
ls | script.sh If the script is executed without any arguments, a usage message is meant to appear. I know how to handle either one of the two possibilities: Possibility 1: Code:
while (($#)); do
do_something $1
shift
done
Possibility 2: Code:
while read line; do
do_something $line
done
But how would this be done in combination, so that the script does not wait for user input? I hope I made myself clear. Thanks, Stefan |
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