Commands by nadavkav

Commands by nadavkav (11)

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Show running services (using systemctl)
This is sample output - yours may be different.
0

systemctl --no-page -t service -a --state running --no-legend

nadavkav · 2016-04-30 08:41:57 3
run vlc as root

Enable root user to run VLC
This is sample output - yours may be different.
-5

sed -i 's/geteuid/getppid/g' /usr/bin/vlc

nadavkav · 2014-11-21 17:43:59 4
rsync over ssh using alternative port number

Useful, when you need to backup/copy/sync a folder over ssh with a non standard port number
This is sample output - yours may be different.
0

rsync -arvz -e 'ssh -p 2233' --progress --delete remote-user@remote-server.org:/path/to/folder /path/to/local/folder

nadavkav · 2014-09-26 10:42:26 0
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
This is sample output - yours may be different.
3

ssh -R 9000:localhost:9000 you@remote-php-web-server.com

nadavkav · 2011-05-28 09:39:16 1
Set KDE4's Power Devil daemon power policy profiles
This is sample output - yours may be different.
1

qdbus org.kde.powerdevil /modules/powerdevil setProfile <Profilename>

nadavkav · 2010-11-05 13:02:54 0
Enable NetworkManager (in KDE)

some times, after package upgrade (debian) or knetworkmanager crashing... NetworkManager turns off (disables). to enable it, use the above command.
This is sample output - yours may be different.
0

dbus-send --system --print-reply --dest=org.freedesktop.NetworkManager /org/freedesktop/NetworkManager org.freedesktop.NetworkManager.Enable boolean:true

nadavkav · 2010-10-07 16:21:40 1
backup local MySQL database into a folder and removes older then 5 days backups
This is sample output - yours may be different.
5

mysqldump -uUSERNAME -pPASSWORD database | gzip > /path/to/db/files/db-backup-`date +%Y-%m-%d`.sql.gz ;find /path/to/db/files/* -mtime +5 -exec rm {} \;

nadavkav · 2009-10-28 19:49:39 0
Remove CR LF from a text file

Remove CR LF (CRLF) from a text file. use man:tr to get more info about removing other characters from a file. and even character to character replacements.
This is sample output - yours may be different.
3

tr -d '\r\n' < input_file.txt > output_file.txt

nadavkav · 2009-10-26 16:12:21 0

locate a filename, make sure it exists and display it with full details

use the locate command to find files on the system and verify they exist (-e) then display each one in full details. Show Sample Output

locate -e somefile | xargs ls -l

nadavkav · 2009-08-23 13:16:59 0

backup and synchronize entire remote folder locally (curlftpfs and rsync over FTP using FUSE FS)

connect to a remote server using ftp protocol over FUSE file system, then rsync the remote folder to a local one and then unmount the remote ftp server (FUSE FS) it can be divided to 3 different commands and you should have curlftpfs and rsync installed
This is sample output - yours may be different.
9

curlftpfs ftp://YourUsername:YourPassword@YourFTPServerURL /tmp/remote-website/ && rsync -av /tmp/remote-website/* /usr/local/data_latest && umount /tmp/remote-website

nadavkav · 2009-03-31 18:01:00 3
backup your entire hosted website using cPanel backup interface and wget

this will connect to your hosted website service through the cPanel interface and use its backup tool to backup and download the entire website, locally. (do not forget to replace : YourUsername , YourPassword and YourWebsiteUrl for it to work )
This is sample output - yours may be different.
4

wget --http-user=YourUsername --http-password=YourPassword http://YourWebsiteUrl:2082/getbackup/backup-YourWebsiteUrl-`date +"%-m-%d-%Y"`.tar.gz

nadavkav · 2009-03-31 17:50:41 1

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easily convert one unit to another

Easily convert units of similar measurement. May also be invoked alone, units.

Verify if user account exists in Linux / Unix

Shell function to create a directory named with the current date, in the format YYYYMMDD.

Creates a directory named with the current date, in the format YYYYMMDD. If you give it a directory name as an argument, it will create the new directory inside the specified directory. This is an alternative to command #1993.

Deal with dot files safely

Copy the full path of a file to the clipboard (requires xclip or similar)

Handy for those times you need to paste a file path in an IDE or some other app. sudo apt-get install xclip Then, for convenience, alias xclip to 'xclip -selection c' so you can just do something like realpath . | xclip

convert ascii string to hex

just a bit simpler

Determine if a port is open with bash

For times when netcat isn't available. Will throw a Connection refused message if a port is closed. Scriptable: $ (: /dev/null && echo "OPEN" || echo "CLOSED"

Pull git submodules in parallel using GNU parallel

Make sure to run this command in your git toplevel directory. Modify `-j4` as you like. You can also run any arbitrary command beside `git pull` in parallel on all of your git submodules.

Find files that are older than x days

Find files that are older than x days in the working directory and list them. This will recurse all the sub-directories inside the working directory. By changing the value for -mtime, you can adjust the time and by replacing the ls command with, say, rm, you can remove those files if you wish to.

move a lot of files over ssh

Useful to move many files (thousands or millions files) over ssh. Faster than scp because this way you save a lot of tcp connection establishments (syn/ack packets). If using a fast lan (I have just tested gigabyte ethernet) it is faster to not compress the data so the command would be: tar -cf - /home/user/test | ssh user@sshServer 'cd /tmp; tar xf -'

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