My f, g and m commands

The fgm package remembers the matches returned by find, grep and ag and lets you refer to those results by numeric id for use in other commands.

Example:

$ build fgm.bash.inc      # produces fgm.bash
$ source fgm.bash

# find .js files
$ f .js
1 foo.js
2 test/bar.js
3.test/baz.js
4 app/main/js

# run `wc` on the third match
$ m 3 wc

# grep for 'newtype.*Int"
$ g newtype Int
1 ./src/Name/Id.hs:75:newtype Id = Id Int
2 ./src/Name/Id.hs:100:newtype IdSet = IdSet IS.IntSet
3 ./src/Util/GMap.hs:17:newtype instance GSet Int = GSetInt IS.IntSet
...

# open vi on the second match
$ m 2 vi

# search using `ag`
gg -G .cabal io-streams
1 ...
2 ...
...