Linux Shell

Keybindings

Action	Emacs Mode	Vi Mode
Switch to this mode (bash)	`set -o emacs`	`set -o vi`
Switch to this mode (zsh)	`bindkey -e`	`bindkey -v`

Variable	Definition
`$$`	Process ID of Shell
`$*`	All arguments `$1`..
`"$*"`	All arguments `$1`.. as a single quoted string
`$@`	All arguments `$1`..
`"$@"`	All arguments `$1`.., individually quoted
`$!`	Process ID of last created background process
`$?`	Return value of last statement

Using the script command:

script $(date -I).$$.log

tmux lacks native support, but there’s a great tmux-logging plugin.

Alternatively, there’s a keybinding that can be used with the tmux pipe-pane command:

bind-key H pipe-pane -o "exec cat >>$HOME/'#W-tmux.log'" \; display-message 'Toggled logging to $HOME/#W-tmux.log'

Other replacements can be seen in tmux(1) or tmux notes.

screen can easily log. From within a screen session, press the command character (default ^A) and then:

:log <name of log>