Conditional Expressions with Square Brackets
Conditional expressions are used to test conditions and control the flow of the script based on the test results.
Example:
#!/bin/bash
if [ $1 -gt 10 ]; then
echo "The number is greater than 10."
else
echo "The number is 10 or less."
fi
Output:
$ ./script.sh 15
The number is greater than 10.
$ ./script.sh 5
The number is 10 or less.
Using Square Brackets in Bash
Square brackets ([
and ]
) are essential components in Bash scripting. They are used for a variety of purposes, including conditional expressions, string and numerical comparisons, and file tests. This article provides a comprehensive overview of square brackets in Bash, exploring their uses and functionalities.