Bash-common-checks

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Revision as of 08:27, 19 October 2021 by Chubbard (talk | contribs) (Created page with "## Common checks and validations that are a PITA to remember ## * Check if a var is an integer <pre> VAR=123 if [[ ${VAR} =~ ^-?[0-9]+$ ]]; then echo "Is integer" else ech...")

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1. Common checks and validations that are a PITA to remember ##

Check if a var is an integer

VAR=123
if [[ ${VAR} =~ ^-?[0-9]+$ ]]; then
  echo "Is integer"
else
  echo "Is not integer"
fi

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Bash