Situatie
he command-line interface in Linux provides powerful tools for users, and mastering command history is essential for efficient navigation and retrieval of previously executed commands. The history command is a valuable utility that allows users to view and search through their command history.
Solutie
Pasi de urmat
history
Here, the number(termed as event number) preceded before each command depends on the system. You may get different numbers while executing on your own system.
Display a Limited Number of Commands History
To show the limited number of commands that executed previously as follows:
history 5
Execute a command using its event number with the ! symbol. For instance:
!1997 This will rerun the command with event number 1997.
Print Command Before Execution History
To print a command before executing it to avoid errors, use the :p option after the event number. Example:
!1997:p This will display the command associated with event number 1997 without executing it
Search Command History with grep
Combine the history command with grep for efficient searching. Example:
Example:
history | grep chpasswd
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