Bash-common-checks

From I Will Fear No Evil
Revision as of 09:28, 19 October 2021 by Chubbard (talk | contribs)
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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