commandlinefu.com is the place to record those command-line gems that you return to again and again.
Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/
You can sign-in using OpenID credentials, or register a traditional username and password.
First-time OpenID users will be automatically assigned a username which can be changed after signing in.
Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
Subscribe to the feed for:
Optimal way of deleting huge numbers of files
Using -delete is faster than:
find /path/to/dir -type f -print0 | xargs -0 rm
find /path/to/dir -type f -exec rm {} +
find /path/to/dir -type f -exec rm \-f {} \;
There are 2 alternatives - vote for the best!
Using xargs is better than:
find /path/to/dir -type f -exec rm \-f {} \;
as the -exec switch uses a separate process for each remove. xargs splits the streamed files into more managable subsets so less processes are required.
If you can do better, submit your command here.
You must be signed in to comment.
What is non-optimal about
cd /path/to/dir; rm -rf ./*? If you don't want --force, leave off the -f.
It's slower
cd /path/to/dir; rm ./*is the same as:
rm /path/to/dir/*and has the same drawback: it will fail with "too many arguments" if there is a very large number of files.
=====================
The -delete option to find is non-standard.
The "very large number of files" problem is easily avoided with
cd /path/to/dir/.. ; rm -rf dircertainly the shell-expansion thing could be avoided by calling rm like this, but why is find faster? Is it skipping checks that rm does?