Linux command - finding and running commands

There are several ways to find and run commands on a Linux system. Some common options include:

1. Using the which command: The which command is a utility that displays the full path of a command. You can use it to locate the executable file of a command on the system. For example:

$ which <command>

Replace <command> with the name of the command.

For example, to find the location of the ls command:

$ which ls

This will display the full path of the ls command, such as /bin/ls.

2. Using the type command: The type command is a shell builtin that displays information about a command, including its type (e.g., builtin, alias, or external command) and location. You can use it to find out more about a command and how it is being invoked. For example:

$ type <command>

Replace <command> with the name of the command.

For example, to find out more about the ls command:

$ type ls

This will display information about the ls command, such as its type and location.

3. Using the whereis command: The whereis command is a utility that locates the binary, source, and manual pages of a command. You can use it to find the different components of a command on the system. For example:

$ whereis <command>

Replace <command> with the name of the command.

For example, to find the different components of the ls command:

$ whereis ls

This will display the location of the ls binary, source code, and manual pages, if they are available.

4. Using the find command: The find command is a utility that searches for files and directories on the system. You can use it to search for the executable file of a command. For example:

$ find / -name <command> -type f -perm +111 2>/dev/null

Replace <command> with the name of the command.

For example, to search for the ls command:

$ find / -name ls -type f