Sometimes when working in the finder, it becomes necessary to modify certain system files in your user account's Library directory. Unfortunately, the past few iterations of OS X have, by default, hidden this file. Other system files, such as the
./ssh/known-hosts file, can be a pain to edit in GUI apps like BBEdit or TextEdit for those unfamiliar with the Terminal.
Previously there was a single command line to run to reveal these files in the Finder:
defaults write com.apple.finder AppleShowAllFiles TRUE killall Finder
Likewise, to make these files hidden again:
defaults write com.apple.finder AppleShowAllFiles FALSE killall Finder
If using the Terminal sends you into a frenzy and you'd rather not mess with it (I know folks like this), then you can run this package of Automator scripts I created for just this purpose. Simply double click a script to have it run the corresponding Terminal command in the background to reveal (or hide) system files.
Disclaimer: I am not responsible if you manage to frag your system by mindlessly altering critical system files. Use of these scripts means you accept full responsibility for any modifications you make to your system. When it comes to shell scripts, as Uncle Ben said, "With great power comes great responsibilty." Always execute scripts wisely.