If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information …

Except for -h and -L, all FILE-related tests dereference symbolic links. Beware that parentheses need to be escaped (e.g., by backslashes) for shells. INTEGER may also be -l STRING, which evaluates to …

These options test for particular types of files.

test - check file types and compare values. Exit with the status determined by EXPRESSION. --help display this help and exit. --version . output version information and exit. An omitted EXPRESSION …

Test is a dubious way to check for specific character strings: it uses a process to do what an rc (1) match or switch statement can do. The first example is not only inefficient but wrong, because test …

The behavior of test depends on the number of arguments. Read the bash manual page for the complete specification. File operators: -a FILE True if file exists. -b FILE True if file is block special. …

test - check file types and compare values. Exit with the status determined by EXPRESSION. An omitted EXPRESSION defaults to false. Otherwise, EXPRESSION is true or false and sets exit status. It is …

Test is a dubious way to check for specific character strings: it uses a process to do what an rc (1) match or switch statement can do. The first example is not only inefficient but wrong, because test …

misuse of the test command ([), and putting it into the shell is the wrong way to fix the problem. Instead, proper documentation and a new shell reserved word (!) are sufficient. Tests that require multiple test …

Feb 1, 2025 · Playfully called the "old man test," it involves putting on your socks and shoes while standing on one leg. It is not a scientific measure of physical fitness, but it can reveal your weaknesses.