Commands by Buzzcp

Commands by Buzzcp (4)

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Use a variable in a find command. Useful in scripting.

You define your variable MYVAR with the desired search pattern: MYVAR= ...which can then be searched with the find command. This is useful if you in a script, where you want the arguments to be fed into the find command. The provided search is case insensitive (-iname) and will find all files and directories with the pattern MYVAR (not exact matches). This may go without saying, but if you want exact matches remove the \* and if you want case sensitive, use the -name argument.
This is sample output - yours may be different.
0

find . -iname \*${MYVAR}\* -print

Buzzcp · 2010-08-04 05:43:51 0
Edit video by cutting the part you like without transcoding.

Examples: The following will take frames starting at 15.2 seconds for a total of 45.9 seconds: mencoder -ss 15.2 -endpos 30.7 -oac copy -ovc copy mymovie.avi -o myeditedmovie.avi Keep in mind -endpos is the total time, i.e. the output video in this is 3 minutes 3 seconds in length: mencoder -ss 1 minute -endpos 2 minutes 3 seconds -oac copy -ovc copy mymovie.avi -o myeditedmovie.avi
This is sample output - yours may be different.
8

mencoder -ss <start point> -endpos <time from start point> -oac copy -ovc copy <invid> -o <outvid>

Buzzcp · 2010-01-11 22:59:13 1
Date shows dates at other times/dates

Use date to find the date at other days and times.
This is sample output - yours may be different.
5

date -d '2 weeks ago'

Buzzcp · 2009-04-28 03:09:23 4
Monitor dynamic changes in the dmesg log.

Other logs can be monitored similarly, e.g. watch "tail -15 /var/log/daemon.log"
This is sample output - yours may be different.
11

watch "dmesg |tail -15"

Buzzcp · 2009-04-14 03:13:17 5

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Get user's full name in Mac OS X

Send a signed and encrypted email from the command line

A very simple command to send a signed and encrypted message from the command line using GPG Keys

RDP through SSH tunnel

This command will: 1. open an SSH tunnel to 2. go to background 3. wait for 10 seconds for the connection 4. during the 10 seconds wait it will localy run 'rdesktop' to connect to the remote host through the created SSH tunnel. Password-less log in can be achieved (when server allows it) by adding '-p ' to the 'rdesktop' command

Embed next line on the end of current line using sed

N: On the current line, sed will display it on pattern space, plus a \n (new line); but s/\n//: Will get rid of new line displayed on pattern space, joining the current line's end with the start of the next line Useful in scripts.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Insert a line at the top of a text file without sed or awk or bash loops

Yet another way to add a line at the top a of text file with the help of the tac command (reverse cat).

Console clock

Shows a simple clock in the console -t param removes the watch header Ctrl-c to exit

Benchmark report generator

Nicely display in html format a detailed report of the machine, including cpu benchmarks.

Update twitter from command line without reveal your password

Update twitter from commandline, without revealing your password and without having to type it interactively. You 'll need to put a line "machine twitter.com login TWITTERUSER password TWITTERPASS" in $HOME/.netrc and better chmod 600 that file.

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