Co robi WHICH użycie. Konsola which searches the user's $PATH environment variable.

Czy przydatne?

Polecenie which

Wykonanie, użycie: List the full pathnames of the files that would be executed if the named commands had been run. which searches the user's $PATH environment variable

Opcje wykonania which w konsoli

-a, --all

Print all matches, not just the first.

 -i, --read-alias

Read aliases from standard input and write matches to standard output. Useful for using an alias for which.

 --read-functions

Read shell functions from standard input and report matches to standard output. Useful for also using a shell function for which itself.

 --skip-alias

Ignore --read-alias if present. Useful for finding normal binaries while using --read-alias in an alias for which.

 --skip-dot

Skip directories that start with a dot.

 --skip-functions

Ignore --read-functions if present. Useful when searching for normal binaries while using --read-functions in an alias or function for which.

 --skip-tilde

Skip directories that start with a tilde (~) and executables in $HOME.

 --show-dot

If a matching command is found in a directory that starts with a dot, print ./cmdname instead of the full pathname.

 --show-tilde

Print a tilde (~) to indicate the user's home directory. Ignored if the user is root.

 --tty-only

Stop processing options on the right if not on a terminal.

 -v, -V, --version

Print version information and then exit.

 --help

Print help information and then exit.

Przykłady which działanie w Słownik polecenie W

Przykład WHICH użycie :
Jak użyć command repeatedly (by default, every two seconds) and display the output so you can watch it change over time. The command and any options are passed to sh -c , so you may need to use quotes to get co znaczy.
Przykład WHICH użycie :
Jak użyć Print summaries of system usage, currently logged-in users, and what those users are doing. w is essentially a combination of uptime , who , and ps -a . Display output for one user by specifying user krzyżówka.
Przykład WHICH użycie :
Jak użyć System administration command. Mail warning messages to users that have exceeded their soft limit co to jest.
Przykład WHICH użycie :
Jak użyć database for a domain name, IP address, or NIC name. The information returned varies, but usually contains administrative and technical contacts so that you can find a person to handle problems at słownik.
Przykład WHICH użycie :
Jak użyć Print current user ID. Equivalent to id -un czym jest.