This documents an old version of fish. See the latest release.

Commands

fish ships with the following commands:

• _ - call fish's translations
• abbr - manage fish abbreviations
• alias - create a function
• and - conditionally execute a command
• argparse - parse options passed to a fish script or function
• begin - start a new block of code
• bg - send jobs to background
• bind - handle fish key bindings
• block - temporarily block delivery of events
• break - stop the current inner loop
• breakpoint - launch debug mode
• builtin - run a builtin command
• case - conditionally execute a block of commands
• cd - change directory
• cdh - change to a recently visited directory
• command - run a program
• commandline - set or get the current command line buffer
• complete - edit command specific tab-completions
• contains - test if a word is present in a list
• continue - skip the remainder of the current iteration of the current inner loop
• count - count the number of elements of a list
• dirh - print directory history
• dirs - print directory stack
• disown - remove a process from the list of jobs
• echo - display a line of text
• else - execute command if a condition is not met
• emit - emit a generic event
• end - end a block of commands
• eval - evaluate the specified commands
• exec - execute command in current process
• exit - exit the shell
• false - return an unsuccessful result
• fg - bring job to foreground
• fish - the friendly interactive shell
• fish_add_path - add to the path
• fish_breakpoint_prompt - define the prompt when stopped at a breakpoint
• fish_command_not_found - what to do when a command wasn't found
• fish_config - start the web-based configuration interface
• fish_git_prompt - output git information for use in a prompt
• fish_greeting - display a welcome message in interactive shells
• fish_hg_prompt - output Mercurial information for use in a prompt
• fish_indent - indenter and prettifier
• fish_is_root_user - check if the current user is root
• fish_key_reader - explore what characters keyboard keys send
• fish_mode_prompt - define the appearance of the mode indicator
• fish_opt - create an option spec for the argparse command
• fish_prompt - define the appearance of the command line prompt
• fish_right_prompt - define the appearance of the right-side command line prompt
• fish_status_to_signal - Convert exit codes to human-friendly signals
• fish_svn_prompt - output Subversion information for use in a prompt
• fish_title - define the terminal's title
• fish_update_completions - update completions using manual pages
• fish_vcs_prompt - output version control system information for use in a prompt
• for - perform a set of commands multiple times
• funced - edit a function interactively
• funcsave - save the definition of a function to the user's autoload directory
• function - create a function
• functions - print or erase functions
• help - display fish documentation
• history - show and manipulate command history
• if - conditionally execute a command
• isatty - test if a file descriptor is a terminal
• jobs - print currently running jobs
• math - perform mathematics calculations
• nextd - move forward through directory history
• not - negate the exit status of a job
• open - open file in its default application
• or - conditionally execute a command
• popd - move through directory stack
• prevd - move backward through directory history
• printf - display text according to a format string
• prompt_pwd - print pwd suitable for prompt
• psub - perform process substitution
• pushd - push directory to directory stack
• pwd - output the current working directory
• random - generate random number
• read - read line of input into variables
• realpath - convert a path to an absolute path without symlinks
• return - stop the current inner function
• set - display and change shell variables
• set_color - set the terminal color
• source - evaluate contents of file
• status - query fish runtime information
• string - manipulate strings
• string-collect - join strings into one
• string-escape - escape special characters
• string-join - join strings with delimiter
• string-join0 - join strings with zero bytes
• string-length - print string lengths
• string-lower - convert strings to lowercase
• string-match - match substrings
• string-pad - pad strings to a fixed width
• string-repeat - multiply a string
• string-replace - replace substrings
• string-split - split strings by delimiter
• string-split0 - split on zero bytes
• string-sub - extract substrings
• string-trim - remove trailing whitespace
• string-unescape - expand escape sequences
• string-upper - convert strings to uppercase
• suspend - suspend the current shell
• switch - conditionally execute a block of commands
• test - perform tests on files and text
• time - measure how long a command or block takes
• trap - perform an action when the shell receives a signal
• true - return a successful result
• type - indicate how a command would be interpreted
• ulimit - set or get resource usage limits
• umask - set or get the file creation mode mask
• vared - interactively edit the value of an environment variable
• wait - wait for jobs to complete
• while - perform a command multiple times