Practical UNIX

test

Evaluate condition as true or false

Usage: test condition

or

[ condition ]

SEE ALSO

For more information, see page 766

File tests:

-f name means is name a regular file?

-d name means is name a directory?

-r name means is name readable?

-w name means is name writable?

-x name means is name executable?

-c name means is name a character device file?

-b name means is name a block device file?

-s name means is name a file with size is greater than zero?

-h or -L name means is name a symbolic link?

String tests:

"string" means is string not empty?

-z string means is string empty (zero size)?

s1 = s2 means are the two strings the same?

s1 != s2 means are the ...