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DGPickett,

I agree, readibility is important and the if/fi structure is perhaps better from that perspective. And yes, exec() adds overhead and the built-in resources should be used as much as...

methyl/DGPicket,

Thanks for offering the working solutions. It is still a head-scratcher why the original code is not working though. I used the hints from suggested solutions to get the regex...

If I remove the ';', then it seems like sh doesn't know when to stop looking for args to 'egrep'. Here is the output:

./aaa: line 4: [: missing `]'
egrep: ]: No such file or directory

Hi,

I am attempting to test the input value for an integer. And if the value is not an integer, the intent is to complain about it and exit. Only if I can get past the syntax error, life will be...