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This article is about how to use the builtin command in Linux. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The Linux common command builtin command is used to execute the specified shell internal command and return the return value of the internal command. When the builtin command is used, you will no longer be able to use external commands in Linux. When the same function as the shell internal command is defined in the system, builtin is used to explicitly execute the shell internal command, thus ignoring the defined shell function.

Syntax builtin (parameter) parameter shell internal command: specifies the shell internal command to be executed.

The instance uses the builtin command to execute shell internal command alias to display the command alias, and enter the following command:

After builtin alias # executes the shell internal instruction alias cp='cp-i' alias l.='ls-d. *-- color=tty' alias ll='ls-l-- color=tty' alias ls='ls-- color=tty' alias mv='mv-i' alias rm='rm-i' alias which='alias | / usr/bin/which-- tty-only-- read-alias-- show-dot-- show-tilde', the command alias under the current system will be output.

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