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Commands by anarcat from sorted by
Terminal - Commands by anarcat - 11 results
pactl set-sink-mute 0 toggle
2014-02-06 04:50:17
User: anarcat
1

0 can also be replaced by the source name, e.g. alsa_output.pci-0000_00_1b.0.analog-stereo

cp data.{json,yaml}
qq/<<<<<<^Md/^======^Mdd/>>>>>>^Mdd^M/<<<<<<q
2013-01-23 19:28:23
User: anarcat
1

This is not exactly a commandline, but a vim macro to automatically ditch the "old" version of a conflict when dealing with the naster

mysql -BNe "SELECT id FROM processlist WHERE user = 'redmine';" information_schema | while read id; do mysqladmin kill $id; done
2012-03-09 17:37:23
User: anarcat
Functions: kill read
Tags: mysql kill BOFH
0

Kills all the threads from the user provided in the WHERE request.

Can be refined through the SQL request, of course, see http://dev.mysql.com/doc/refman/5.1/en/processlist-table.html for the available columns.

mysql -BNe "SELECT user,COUNT(user) AS count FROM processlist GROUP BY user ORDER BY count;" information_schema
2012-03-09 17:25:23
User: anarcat
Tags: mysql
0

This shows the number of threads allocated per user.

^z; bg; disown
2011-12-06 20:48:01
User: anarcat
3

background and disown, but with a proper one-line syntax

rename s/^/./ *
du -sch *
2011-12-06 18:38:20
User: anarcat
Functions: du
Tags: space du disk
-1

All folders, human-readable, no subfolder, with a total. Even shorter.

tcpdump -i eth0 -n | head
2011-12-06 18:34:51
User: anarcat
Functions: tcpdump
0

Sometimes it is useful to have just a general picture of "what is taking all the bandwidth here". Running this command will limit tcpdump to a few packets (instead of flooding your terminal endlessly) and will provide a small, but sometimes sufficient, sample to determine what is going on.

Useful to quickly diagnose DOS attacks.

netstat -anpe
2011-12-06 18:27:09
User: anarcat
Functions: netstat
1

Lists all opened sockets (not only listeners), no DNS resolution (so it's fast), the process id and the user holding the socket.

Previous samples were limiting to TCP too, this also lists UDP listeners.

!$
2011-12-06 18:21:09
User: anarcat
Tags: history
0

!$ will be expanded to the last argument on the previous command. There are also positionnal parameters like !:1, !:2...