test

all

Check file types and compare values. Returns 0 if the condition evaluates to true, 1 if it evaluates to false. See also: `[`.

Examples (6)

Test if a given variable is equal to a given string

test "$MY_VAR" = "/bin/zsh"

Test if a given variable is empty ([z]ero length)

test -z "$GIT_BRANCH"

Test if a [f]ile exists

test -f "path/to/file_or_directory"

Test if a [d]irectory does not exist

test ! -d "path/to/directory"

If A is true, then do B, or C in the case of an error (notice that C may run even if A fails)

test condition && echo "true" || echo "false"

Use `test` in a conditional statement

if test -f "path/to/file"; then echo "File exists"; else echo "File does not exist"; fi