The manual page and help for the unalias built-in Bash command. The unalias command removes the specified names from the aliases.

Manual page and help for the fstopgm linux command.

The manual page and help for the umask built-in Bash command. The umask command sets the user file creation mask to the specified mode.

The manual page and help for the sed linux command. The sed command copies the specified files to the specified destination file while editing them according to a script that contains the commands. If no files are specified, it reads from standard input and outputs it to standard output.

The manual page and help for the apt-show-versions linux command. The apt-show-versions command lists the versions of packages installed on the system.

Manual page and help for the dpkg-scansources linux command. The dpkg-scansources command looks for .dsc files in the specified binary directory. These are used to create a Debian source index that will be output to standard output.

The manual page and help for the ulimit built-in Bash command. The ulimit command provides control to restrict the resources available to the shell, if supported by the system.

The manual page and help for the type built-in Bash command. The type command provides information about the type of command specified.

Manual page and help for the linux at command. The at at command queues, scans, or deletes tasks that you need to start later.

The manual page and help for the trap's built-in Bash command. The trap command defines and activates event handlers that run when signals are received or other conditions occur.