Evaluate conditional expressions for file testing, string comparison, and arithmetic checks. Use for shell script conditionals.
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Install skill "test-tool" with this command: npx skills add dinghaibin/test-tool
Evaluate expressions and return exit status 0 (true) or 1 (false). Used for file attribute testing, string comparison, and numeric checks in scripts.
test-tool <expression>
-f file: True if file exists-d dir: True if directory exists-z str: True if string is emptyn1 -eq n2: True if numbers equals1 = s2: True if strings equaltest-tool -f /etc/passwd
test-tool -d /home/user
test-tool 5 -gt 3
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