[NTLUG:Discuss] basic Bash question

[fredjame]

Lance Simmons wrote:

>I need to test whether a string is an integer.
>
>I'm tailing a logfile and extracting a string.  99 times out of 100 the
>string is an integer, but sometimes, because of the program that creates
>the logfile, it's not an integer.
>
>Is there a simple way in a bash script to test whether a string is an
>integer?
>
I'm thinking pipe the string trough awk or grep, but there may be an 
easier way.

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