Test - Condition Evaluator#

Evaluate expressions and return exit status 0 (true) or 1 (false). Used for file attribute testing, string comparison, and numeric checks in scripts.

Usage#

bash

test-tool <expression>

Common Tests#

• -f file: True if file exists
• -d dir: True if directory exists
• -z str: True if string is empty
• n1 -eq n2: True if numbers equal
• s1 = s2: True if strings equal

Examples#

bash

test-tool -f /etc/passwd
test-tool -d /home/user
test-tool 5 -gt 3