HSTR(1)

NAME
hstr - easily view, navigate, sort and use your command history with shell history suggest box.

SYNOPSIS
hstr [option] [arg1] [arg2]...

DESCRIPTION
hstr uses shell history to provide suggest box like functionality for commands used in the past. By default it parses .bash-history file that is filtered as you type a command substring. Commands are not just filtered, but also ordered by a ranking algorithm that considers number of occurrences, length and timestamp. Favorite and frequently used commands can be bookmarked. In addition hstr allows removal of commands from history - for instance with a typo or with a sensitive content.

OPTIONS

-h --help
    Show help

-n --non-interactive
    Print filtered history on standard output and exit

-k --kill-last-command
    Delete the last command from history and exit

-i --insert-in-terminal=[command]
    Insert custom command to terminal prompt and exit

-f --favorites
    Show favorites view immediately

-s --show-configuration
    Show configuration that can be added to ~/.bashrc

-b --show-blacklist
    Show blacklist of commands to be filtered out before history processing

-V --version
    Show version information

KEYS

pattern
    Type to filter shell history.

Ctrl-e
    Toggle regular expression and substring search.

Ctrl-t
    Toggle case sensitive search.

Ctrl-/, Ctrl-7
    Rotate view of history as provided by bash, ranked history ordered by the number of occurrences/length/timestamp and favorites.

Ctrl-f
    Add currently selected command to favorites.

Ctrl-l
    Toggle search pattern case.

Ctrl-r, UP arrow, DOWN arrow, Ctrl-n, Ctrl-p, Ctrl-j, Ctrl-k
    Navigate in the history list.

TAB, RIGHT arrow
    Choose currently selected item for completion and let user to edit it on the command prompt.

LEFT arrow
    Choose currently selected item for completion and let user to edit it in editor (fix command).

ENTER
    Choose currently selected item for completion and execute it.

DEL Remove currently selected item from the shell history.

BACKSPACE, Ctrl-h
    Delete last pattern character.

Ctrl-u, Ctrl-w
    Delete pattern and search again.

Ctrl-x
    Write changes to shell history and exit.

Ctrl-g
    Exit with empty prompt.

ENVIRONMENT VARIABLES
hstr defines the following environment variables:

HSTR_CONFIG
    Configuration options: hicolor
            Get more colors with this option (default is monochromatic). monochromatic
            Ensure black and white view. prompt-bottom
            Show prompt at the bottom of the screen (default is prompt at the top). help-on-opposite-side
            Show help label on the opposite site (default is next to the prompt). hide-basic-help
            Hide the basic help label. hide-help
            Hide basic and history help labels. Implicitly sets hide-basic-help. no-confirm
            Do not ask for confirmation on a history entry delete (default is with confirmation). regexp-matching
            Filter command history using regular expressions. substring-matching
            Filter command history using substring. keywords-matching
            Filter command history using keywords - item matches if contains all keywords in pattern in any order (keywords match is default). case-sensitive
            Make history filtering case sensitive (it's case insensitive by default). raw-history-view
            Show normal history as a default view (metric-based view is shown otherwise). favorites-view
            Show favorites as a default view (metric-based view is shown otherwise). static-favorites
            Do not put recently used favorite to the head of favorites (favorites are reordered by default). skip-favorites-comments
            Skip comments (lines beginning with #) when loading ~/.hstr_favorites (all lines are loaded by default). duplicates
            Show duplicates in rawhistory (duplicates are discarded by default). verbose-kill
            Print the last command command deleted from history (nothing is printed by default). blacklist
            Load list of commands to skip when processing history from ~/.hstr_blacklist (built-in blacklist used otherwise). keep-page
            Don't clear page with command selection on exit (page is cleared by default). big-keys-skip
            Skip big history entries i.e. very long lines (default). big-keys-floor
            Use different sorting slot for big keys when building metrics-based view (big keys are skipped by default). big-keys-exit
            Exit (fail) on presence of a big key in history (big keys are skipped by default). warning
            Show warning. debug
            Show debug information. Example:
            export HSTR_CONFIG=hicolor,regexp-matching,raw-history-view

HSTR_PROMPT
    Change prompt string which is user@host$ by default. Example:
            export HSTR_PROMPT="$ "

FILES

~/.hstr_favorites
     Bookmarked favorite commands.

~/.hstr_blacklist
     Commands to be hidden.

BASH CONFIGURATION
Optionally add the following lines to ~/.bashrc:

alias hh=hstr                    # make hh alias of hstr
export HSTR_CONFIG=hicolor       # get more colors
shopt -s histappend              # append new history items to .bash_history
export HISTCONTROL=ignorespace   # leading space hides commands from history
export HISTFILESIZE=10000        # increase history file size (default is 500)
export HISTSIZE=${HISTFILESIZE}  # increase history size (default is 500)
# ensure synchronization between bash memory and history file
export PROMPT_COMMAND="history -a; history -n; ${PROMPT_COMMAND}"
# if this is interactive shell, then bind hstr to Ctrl-r (for Vi mode check doc)
if [[ $- =~ .*i.* ]]; then bind '"\C-r": "\C-a hstr -- \C-j"'; fi

ZSH CONFIGURATION
Optionally add the following lines to ~/.zshrc:

export HSTR_CONFIG=hicolor            # get more colors
setopt histignorespace                # skip cmds w/ leading space from history
bindkey -s "\C-r" "\C-a hstr -- \C-j" # bind hstr to Ctrl-r (for Vi mode check doc)

EXAMPLES

hstr git
     Start hstr and show only history items containing 'git'.

hstr cpp add git
     Start hstr and show only history items containing 'cpp', 'add' and 'git'.

hstr --non-interactive git
     Print history items containing 'git' to standard output and exit.

hstr --show-configuration >> ~/.bashrc
     Append default hstr configuration to your bash profile.

hstr --show-configuration >> ~/.zhrc
     Append default hstr configuration to your zsh profile.

hstr --show-blacklist
     Show blacklist configured for history processing.

hstr --insert-in-terminal="git add . && git diff --cached"
     Insert command in terminal prompt and exit.

AUTHOR
Written by Martin Dvorak <martin.dvorak@mindforger.com>

BUGS
Report bugs to https://github.com/dvorka/hstr/issues

SEE ALSO
history(1), bash(1), zsh(1)