usha: search your command-line history.
Usage:
usha init [-v]
usha clean [DAYS]
usha update [-v] CMD [-c CHECKSUM]
usha [DIR] [-n N] [-tvrs SEARCHSTRING]
Options:
DIR Directory to search within.
CMD Insert command into database.
DAYS Number of days of history to preserve. [default: 60]
-n N Retrieve the N most common commands. [default: 5]
-s SEARCHSTRING Search for commands containing a string.
-t Order by most recently entered.
-v Verbose.
-r Recurse current directory.
-c CHECKSUM Optional argument to update to prevent duplication.
usha was inspired by Denis Gladkikh's DBHist post and shell script. It has few innovations over that script; mostly, it seemed like a fun project and I wanted to make my own. But I also don't use bash and wanted a shell-agnostic equivalent to Denis's program.
As such usha is a standalone binary which you should put into the right part of your shell loop. It expects to be called with update in order to add new items to its history table. For instance, as a part of my prompt() routine in my shell, I call usha update with the most recent item in my shell's history.
I also have hh (history here) aliased to usha ., meaning 'show me the 5 most common commands that I have run in this directory.'
usha looks for the presence of a .ushaignore file in the user's home directory, which should contain a list of commands to ignore. Currently it doesn't support wildcards. Here's mine:
exit
z
ls
cd