I use $_ all the time, since it's the last argument to the previous command [after expansion]. Example would be: atom path/to/so[tab]/fi[tab] [return] git diff

I use $_ all the time, since it's the last argument to the previous command [after expansion]. Example would be: atom path/to/so[tab]/fi[tab] [return] git diff $_ Complete reference: https://www.gnu.org/software/bash/manual/html_node/Variable-Index.html https://www.gnu.org/software/bash/manual/html_node/Variable-... See also: http://wiki.bash-hackers.org/syntax/shellvars http://wiki.bash-hackers.org/syntax/shellvars