history

history(1)                           fish                           history(1)



NAME
       history - Show and manipulate command history

   Synopsis
       history search [ --show-time ] [ --case-sensitive ] [ --exact | --prefix | --contains ] [ --max=n ] [ --null ] [ -R | --reverse ] [ 'search string'... ]
       history delete [ --show-time ] [ --case-sensitive ] [ --exact | --prefix | --contains ] 'search string'...
       history merge
       history save
       history clear
       history ( -h | --help )

   Description
       history is used to search, delete, and otherwise manipulate the history
       of interactive commands.

       The following operations (sub-commands) are available:

       · search returns history items matching the search string. If no search
         string is provided it returns all history items. This is the default
         operation if no other operation is specified. You only have to
         explicitly say history search if you wish to search for one of the
         subcommands. The --contains search option will be used if you don't
         specify a different search option. Entries are ordered newest to
         oldest unless you use the --reverse flag. If stdout is attached to a
         tty the output will be piped through your pager by the history
         function. The history builtin simply writes the results to stdout.

       · delete deletes history items. Without the --prefix or --contains
         options, the exact match of the specified text will be deleted. If
         you don't specify --exact a prompt will be displayed before any items
         are deleted asking you which entries are to be deleted. You can enter
         the word 'all' to delete all matching entries. You can enter a single
         ID (the number in square brackets) to delete just that single entry.
         You can enter more than one ID separated by a space to delete
         multiple entries. Just press [enter] to not delete anything. Note
         that the interactive delete behavior is a feature of the history
         function. The history builtin only supports --exact --case-sensitive
         deletion.

       · merge immediately incorporates history changes from other sessions.
         Ordinarily fish ignores history changes from sessions started after
         the current one. This command applies those changes immediately.

       · save immediately writes all changes to the history file. The shell
         automatically saves the history file; this option is provided for
         internal use and should not normally need to be used by the user.

       · clear clears the history file. A prompt is displayed before the
         history is erased asking you to confirm you really want to clear all
         history unless builtin history is used.

       The following options are available:

       These flags can appear before or immediately after one of the sub-
       commands listed above.

       · -C or --case-sensitive does a case-sensitive search. The default is
         case-insensitive. Note that prior to fish 2.4.0 the default was case-
         sensitive.

       · -c or --contains searches or deletes items in the history that
         contain the specified text string. This is the default for the
         --search flag. This is not currently supported by the delete
         subcommand.

       · -e or --exact searches or deletes items in the history that exactly
         match the specified text string. This is the default for the delete
         subcommand. Note that the match is case-insensitive by default. If
         you really want an exact match, including letter case, you must use
         the -C or --case-sensitive flag.

       · -p or --prefix searches or deletes items in the history that begin
         with the specified text string. This is not currently supported by
         the --delete flag.

       · -t or --show-time prepends each history entry with the date and time
         the entry was recorded. By default it uses the strftime format # cn.
         You can specify another format; e.g., --show-time='%Y-%m-%d %H:%M:%S
         ' or --show-time='%a%I%p'. The short option, -t, doesn't accept a
         strftime format string; it only uses the default format. Any strftime
         format is allowed, including s to get the raw UNIX seconds since the
         epoch.

       · -z or --null causes history entries written by the search operations
         to be terminated by a NUL character rather than a newline. This
         allows the output to be processed by read -z to correctly handle
         multiline history entries.

       · -<number> -n <number> or --max=<number> limits the matched history
         items to the first 'n' matching entries. This is only valid for
         history search.

       · -R or --reverse causes the history search results to be ordered
         oldest to newest. Which is the order used by most shells. The default
         is newest to oldest.

       · -h or --help display help for this command.

   Example
       history clear
         Deletes all history items

       history search --contains 'foo'
         Outputs a list of all previous commands containing the string 'foo'.

       history delete --prefix 'foo'
         Interactively deletes commands which start with 'foo' from the history.
         You can select more than one entry by entering their IDs separated by a space.

   Customizing the name of the history file
       By default interactive commands are logged to
       $XDG_DATA_HOME/fish/fish_history (typically
       ~/.local/share/fish/fish_history).

       You can set the fish_history variable to another name for the current
       shell session. The default value (when the variable is unset) is fish
       which corresponds to $XDG_DATA_HOME/fish/fish_history. If you set it to
       e.g. fun, the history would be written to
       $XDG_DATA_HOME/fish/fun_history. An empty string means history will not
       be stored at all. This is similar to the private session features in
       web browsers.

       You can change fish_history at any time (by using set -x fish_history
       'session_name') and it will take effect right away. If you set it to
       'default', it will use the default session name (which is 'fish').

       Other shells such as bash and zsh use a variable named HISTFILE for a
       similar purpose. Fish uses a different name to avoid conflicts and
       signal that the behavior is different (session name instead of a file
       path). Also, if you set the var to anything other than fish or default
       it will inhibit importing the bash history. That's because the most
       common use case for this feature is to avoid leaking private or
       sensitive history when giving a presentation.

   Notes
       If you specify both --prefix and --contains the last flag seen is used.

       Note that for backwards compatibility each subcommand can also be
       specified as a long option. For example, rather than history search you
       can type history --search. Those long options are deprecated and will
       be removed in a future release.



Version 3.0.2                   Tue Mar 26 2019                     history(1)