Posts by Guariba Som • 11 points

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  A: Check if variable is a positive integer

  I believe that the @stderr method is the simplest because it uses directly the output status of the 'expr' command, as well as being portable. Simplifying a little more: [ `expr "$var" + 0…

  linux variables bash whole

  answered 5 years, 4 months ago Guariba Som 11