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 7
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 4
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 31
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 10

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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"

Remove git branches that do not have a remote tracking branch anymore

Virtualbox rsync copy (without defining any virtualbox configuration)

That is, after running `vagrant ssh-config` to determine ports and ip's: $ vagrant ssh-config Host default HostName 127.0.0.1 User vagrant Port 2200 UserKnownHostsFile /dev/null StrictHostKeyChecking no PasswordAuthentication no IdentityFile /Users/romanvg/tmp/.vagrant/machines/default/virtualbox/private_key IdentitiesOnly yes LogLevel FATAL

Find which service was used by which port number

RELINK a lot of broken symlinks - FIX broken symlinks after rsync site to new server

After you run this script, you can check status for broken symlink with this command: find -L . -type l

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Debug a remote php application (behind firewall) using ssh tunnel for XDEBUG port 9000

If you need to xdebug a remote php application, which is behind a firewall, and you have an ssh daemon running on that machine. you can redirect port 9000 on that machine over to your local machine from which you run your xdebug client (I am using phpStorm) So, run this command on your local machine and start your local xdebug client, to start debugging. more info: http://code.google.com/p/spectator/wiki/Installing

Grep all non-ascii character in file

It will highlight non-ascii character in a file. those character can cause problem for some application parsing ascii file.

remove execute bit only from files. recursively

List all accessed configuration files while executing a program in linux terminal (improved version)

Last listed files presumably have higher precedency then files listed first, i.e. configuration files in the personal .config directory will be listed last and their config parameters will be more authoritative then default config parameters defined in /etc directory which are usually listed above them. If you replace ".conf" with ".ini" in the command, initial files will be listed instead of config files. If you do not like to list multiple access to the same config file, pipe to "uniq" or "uniq -c" to prefix lines by the number of occurrences

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