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.
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.
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:
Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
Realtime lines per second in a log file using python ... identical to perl version, except python is much better :)
There are 2 alternatives - vote for the best!
Displays the realtime line output rate of a logfile.
-l tels pv to count lines
-i to refresh every 10 seconds
-l option is not in old versions of pv. If the remote system has an old pv version:
ssh tail -f /var/log/apache2/access.log | pv -l -i10 -r >/dev/null
The cut should match the relevant timestamp part of the logfile, the uniq will count the number of occurrences during this time interval.
Using tail to follow and standard perl to count and print the lps when lines are written to the logfile.
Another way of counting the line output of tail over 10s not requiring pv.
Cut to have the average per second rate :
tail -n0 -f access.log>/tmp/tmp.log & sleep 10; kill $! ; wc -l /tmp/tmp.log | cut -c-2
You can also enclose it in a loop and send stderr to /dev/null :
while true; do tail -n0 -f access.log>/tmp/tmp.log & sleep 2; kill $! ; wc -l /tmp/tmp.log | cut -c-2; done 2>/dev/null
If you can do better, submit your command here.
You must be signed in to comment.