Commands by kalabaza (0)

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Rename files in batch

Printable random characters
Reads psuedorandom bytes from /dev/urandom, filtering out non-printable ones. Other character classes can be used, such as [:alpha:], [:digit:] and [:alnum:]. To get a string of 10 lowercase letters: $ tr -dc '[:lower:]' < /dev/urandom | head -c 10

Check your unread Gmail from the command line
notice what happens when there is more than one unread message in a thread... also people please dont hardcode the password when you use curl. Leave it out and curl will ask you when it runs. Please...?

Produce 10 copies of the same string

Rename files in batch

Insert the last argument of the previous command

Analyze, check, auto-repair and optimize Mysql Database
A useful way to do a full check and auto repair damaged databases

Short and elegant way to backup a single file before you change it.
Remember to backup everything before changing it so you can restore all to normal.

Remove multiple spaces
The command removes all the spaces whithin a file and leaves only one space.

Make a directory named with the current date
Create a directory named with the current date in ISO 8601 format (yyyy-mm-dd). Useful for storing backups by date. The --iso switch may only work with GNU date, can use format string argument for other date versions.


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