Commands by davidwalker23 (0)

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Screencast of your PC Display with mp4 output
Since ffmpeg on Ubuntu is deprecated, now there is avconv. Please note that the screen area here is set with a predefined format "-s wxga" that is corresponding to "-s 1366x768") There is also the option to add a title in the metadata of the resulting video.

Rapidly invoke an editor to write a long, complex, or tricky command
Allows you to edit your command using your chosen editor. Works in bash with "set -o vi".

Route outbound SMTP connections through a addtional IP address rather than your primary

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Blackhole any level zones via dnsmasq
Explanation It creates dnsmasq-com-blackhole.conf file with one line to route all domains of com zones to 0.0.0.0 You might use "address=/home.lab/127.0.0.1" to point allpossiblesubdomains.home.lab to your localhost or some other IP in a cloud.

Check if a string is into a variable
Returns true (0) if the string is into $var, or false (1) if not.

Encrypted archive with openssl and tar
The lifehacker way: http://lifehacker.com/software/top/geek-to-live--encrypt-your-data-178005.php#Alternate%20Method:%20OpenSSL "That command will encrypt the unencrypted-data.tar file with the password you choose and output the result to encrypted-data.tar.des3. To unlock the encrypted file, use the following command:" $ openssl des3 -d -salt -in encrypted-data.tar.des3 -out unencrypted-data.tar

copy partition table from /dev/sda to /dev/sdb

Find which jars contain a class

List PHP-FPM pools by total CPU usage

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