Commands by drjones (1)

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Help shell find freshly installed applications (re: PATH)
Immediately after installing things into your PATH (e.g. under /usr/bin), currently open shells cannot find them ("zsh: command not found"). Use rehash to get the shell to rescan available executables.

prevents replace an existing file by mistake
Use set +o noclobber and you will be able to replace files again

Put a console clock in top right corner
This puts a clock in the top right of the terminal. This version doesn't use tput, but uses escape codes

Edit a file on a remote host using vim

make 100 directories with leading zero, 001...100, using bash3.X

list block devices
Shows all block devices in a tree with descruptions of what they are.

sort list of email addresses by domain.tld
email random list can be created here: https://www.randomlists.com/email-addresses

A command to copy mysql tables from a remote host to current host via ssh.
In the example above 3 tables are copied. You can change the number of tables. You should be able to come up with variants of the command by modifying the mysqldump part easily, to copy some part of remote mysql DB.

Grab a list of MP3s out of Firefox's cache
Ever gone to a site that has an MP3 embedded into a pesky flash player, but no download link? Well, this one-liner will yank the names of those tunes straight out of FF's cache in a nice, easy to read list. What you do with them after that is *ahem* no concern of mine. ;)

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