Re: Increment counter upon each execution of shell script

Thank you all for your help. I will try out the things you recommended
and hope at least one of them does what I need it to do.

The reason for this counter is that the way that the files that I wish
to get from a remote server are named is something like the following:
SYSTEM.LOGFILE.G4401V00. Every day, there's a new file that gets
added, where the G4401 becomes G4402, etc. So I was thinking of
keeping a counter in a separate file that would do this incrementation
and then concatenate the strings to form the entire file name. Please
let me know if you think this approach is a reasonable one and if not,
any suggestions are more than welcome.

Thanks

On Jun 27, 6:16 pm, phil-news-nos...@xxxxxxxx wrote:
On Fri, 27 Jun 2008 03:18:52 +0100 Ben Bacarisse <ben.use...@xxxxxxxxx> wrote:

| You need a file to store the counter, like this:
|
|  #!/bin/bash
|
|  read COUNT <counter
|  echo $COUNT
|  echo $((COUNT+1)) >counter

My preference would be to do:

read COUNT <counter
echo $COUNT
echo $((COUNT+1)) >counter.$$
mv -f counter.$$ counter || exit 1

Even that won't ensure a correct count.  It should at least avoid corrupting
the counter if there is more than one process involved.

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