alias r='fc -s'

With the fc -s [pat=rep ...] [command] format, command is re-executed after performing the OLD=NEW substitution.

A useful alias for it is r='fc -s', so that:

• typing r re-executes the last cmd.
• typing r cc executes your last command beginning with cc.
• typing r mkdi=mkdir applies patt=rep sub to the last command in history.
• typing r v1=v2 curl would search for the last curl command in history and re-execute it with applied replacement.

r='fc -s' # add `alias r='fc -s' to your ~/.aliasrc to make it permanent.


$ cc file.c -o progrm
$ r cc
cc file.c -o program


$ cat README
$ r 
cat README


$ mkdi -p a/b/c/dir
$ r mkdi=mkdir
mkdir -p a/b/c/dir


$ curl https://api.example.com/v1 
$ r v1=v2 curl
curl https://api.example.com/v2

In the same vein, you can add ^pat^rep and !! to your term-fu arsenal, the difference being that, these only apply to the previous command in history:

$ cd /usr/locl/bin
$ ^locl^local
cd /usr/local/bin


$ tar tf backup.tar.gz # list (t)able of contents for (f)file
$ ^tf^xzf
tar xzf backup.tar.gz # (x)extract (z)gzip (f)file


$ ls
$ !!
ls


$ vim /etc/hosts
$ sudo !!
sudo vim /etc/hosts


$ ecgo test
$ !!:s/ecgo/echo # vim users, do you recognize this?
echo hi


$ curl https://api.example.com
$ !! | jq
curl https://api.example.com | jq


$ ls *.tmp
$ !! | xargs rm
ls *.tmp | xargs rm