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Author Topic: Linux cshell programming question  (Read 3662 times)

incognito

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Linux cshell programming question
« on: January 08, 2006, 06:26:41 PM »
cp $1 /tmp/tempfile.$$

This will create a file whose name is something like /tmp/tempfile.14506, if
the pid number is 14506.



I don't understand this very much, why do we add $1 to it? I know $$ prints out the current PID of the process.

As you can see I am not very familiar with shell programming.
« Last Edit: January 08, 2006, 07:51:13 PM by incognito »
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incognito

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Linux cshell programming question
« Reply #1 on: January 08, 2006, 06:29:23 PM »
Am thinking this says...

pass /tmp/tempfile.$$ AS it's first and only parameter to cp,

am i wrong?
« Last Edit: January 08, 2006, 07:44:37 PM by incognito »
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webwhy

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Linux cshell programming question
« Reply #2 on: January 08, 2006, 08:48:17 PM »
it refers to the first command line argument of the script
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Rob

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Linux cshell programming question
« Reply #3 on: January 09, 2006, 02:16:27 AM »
Moved to programming...
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