From LQWiki

The test command is used in shell commands to test various conditions. This is most useful in shell scripts.

Provided by

Most shells provide this as a builtin, but this is also present in the GNU Coreutils as a utility. The two forms may have different behavior. Most (all?) Linux distributions incorporate the utility from the GNU Coreutils: man page

Related Commands

• false - gives exit status 1.
• true - gives exit status 0.
• expr - evaluates an expression, result to stdout

See also

shell scripting

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