My Favorite New Bash Command Line

A while ago I found an article entitled Top Ten One-Liners from CommandLineFu Explained, and I liked the example to quickly create backup files. Well, today I had some kind of Perforce problem after I renamed a couple of files, and I couldn’t submit the changelist, but I also wasn’t allowed to resolve anything.

So I decided to use my new CommandLineFu to make a backup, revert, checkout and copy the backup back over. It was amazingly simple:

p4 revert
p4 edit

Line 1 copies to The {,.save} part expands to two arguments, the first one being just the preceding file name, the second the preceding file name with .save attached. In line 4, I move the files, but in the opposite direction.


About Mathias

Software development engineer. Principal developer of DrJava. Recent Ph.D. graduate from the Department of Computer Science at Rice University.
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