Question

I need to use the following very often

diff <filename.c> standard

How can I have an alias (adiff) for it so that I would do

adiff filename.c

and it would expand to

diff filename.c standard

Answer 1

Use diff’s ‘–to-file’ option.

Try adding this line to your .cshrc:

alias adiff '/usr/bin/diff --to-file=standard'

Just tested this in Bash (different alias-syntax though) and seems to work.

Please insert the full path for the file “standard” to make sure you can call it from other directories too.

Now you should be able to use:

$ adiff fromfile