Bash-common-checks: Difference between revisions
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===Common checks and validations that are a PITA to remember=== | |||
* Check if a var is an integer | * Check if a var is an integer | ||
* support negative as well as positive integer values using extended regex | |||
<pre> | <pre> | ||
VAR=123 | VAR=123 | ||
Revision as of 12:20, 19 October 2021
Common checks and validations that are a PITA to remember
- Check if a var is an integer
- support negative as well as positive integer values using extended regex
VAR=123
if [[ ${VAR} =~ ^-?[0-9]+$ ]]; then
echo "Is integer"
else
echo "Is not integer"
fi