hh (1) - Linux Manuals
hh: easily view, navigate, sort and use your command history with shell history suggest box.
NAME
hh - easily view, navigate, sort and use your command history with shell history suggest box.SYNOPSIS
hh [option] [arg1] [arg2]...- hstr [option] [arg1] [arg2]...
DESCRIPTION
hh 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 occurences, length and timestamp. Favorite and frequently used commands can be bookmarked. In addition hh 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
- -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 occurences/length/timestamp and favorites.
- Ctrl-f
- Add currently selected command to favorites.
- Ctrl-l
- Make search pattern lowercase or uppercase.
- Ctrl-r, UP arrow, DOWN arrow, Ctrl-n, Ctrl-p
- 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.
- BACSKSPACE, 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
hh defines the following environment variables:- HH_CONFIG
-
Configuration options:
hicolor
Get more colors with this option (default is monochromatic). monochromatic
Ensure black and white view. regexp
Filter command history using regular expressions (substring match is default) substring
Filter command history using substring. keywords
Filter command history using keywords - item matches if contains all keywords in pattern in any order. casesensitive
Make history filtering case sensitive (it's case insensitive by default). rawhistory
Show normal history as a default view (metric-based view is shown otherwise). favorites
Show favorites as a default view (metric-based view is shown otherwise). blacklist
Load list of commands to skip when processing history from ~/.hh_blacklist (built-in blacklist used otherwise). bigkeysskip
Skip big history entries i.e. very long lines (default). bigkeysfloor
Use different sorting slot for big keys when building metrics-based view (big keys are skipped by default). bigkeysexit
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 HH_CONFIG=hicolor,regexp,rawhistory - HH_PROMPT
- Change prompt string which is user [at] host$ by default.
Example:
export HH_PROMPT="$ "
FILES
- ~/.hh_favorites
-
Bookmarked favorite commands. - ~/.hh_blacklist
Command blacklist.
BASH CONFIGURATION
Optionally add the following lines to ~/.bashrc:
export HH_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)
export PROMPT_COMMAND="history -a; history -n; ${PROMPT_COMMAND}"
# if this is interactive shell, then bind hh to Ctrl-r (for Vi mode check doc)
if [[ $- =~ .*i.* ]]; then bind '"\C-r": "\C-a hh \C-j"'; fi
The prompt command ensures synchronization of the history between BASH memory
and history file.
ZSH CONFIGURATION
Optionally add the following lines to ~/.zshrc:export HISTFILE=~/.zsh_history # ensure history file visibility export HH_CONFIG=hicolor # get more colors bindkey -s "\C-r" "\eqhh\n" # bind hh to Ctrl-r (for Vi mode check doc)
EXAMPLES
- hh git
-
Start `hh` and show only history items containing 'git'. - hh --non-interactive git
Print history items containing 'git' to standard output and exit. - hh --show-configuration >> ~/.bashrc
Append default hh configuration to your Bash profile. - hh --show-blacklist
Show blacklist configured for history processing.