Help with A script Post: 302595240

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Homework and Emergencies Homework & Coursework Questions Help with A script Post 302595240 by methyl on Thursday 2nd of February 2012 12:18:50 PM

02-02-2012

Registered User

Quote:

touch a1
if (test $# -eq 4)
echo " Enter 1 source file and 3 target files"
read a1 a2 a3 a4
then
cp $a1 $a2
cp $a1 $a3
cp $a1 $a4
else echo " Need exactly four parameters, sorry. "
fi

No point learning about this one.
The parameter count checking bit of the script does not work at all.
if (test $# -eq 4) does nothing except execute an irrelevant "test" in a subshell and ignore the result (which is good I suppose because $# has value zero at that moment).
The script collapses in a heap of "cp" errors if you just press return in response to the question.

Last edited by methyl; 02-03-2012 at 06:03 AM..

methyl

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