Commands by oernii (1)

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replace XX by YY in the the current directory and cd to it. ( in ZSH )
If you are in /begin/path/with/XX/pattern cd XX YY will change your current directory to /begin/path/with/YY/pattern in ZSH

search google on os x
Searches Google, but requires no "", and will also search all terms input in the CL, eg: > google foo bar returns search URL "http://www.google.com/search?q=foo%20bar" You could also use awk to replace all spaces with a +, which is how the Google search handles spaces, but that makes it more than one line.

find and reduce 8x parallel the size of JPG images without loosing quality via jpegoptim

Unlock more space form your hard drive
This command changes the reserved space for privileged process on '/dev/sda' to 1 per cent.

Show apps that use internet connection at the moment. (Multi-Language)
Show apps that use internet connection at the moment. Can be used to discover what programms create internet traffic. Skip the part after awk to get more details, though it will not work showing only unique processes. This version will work with other languages such as Spanish and Portuguese, if the word for "ESTABLISHED" still contain the fragment "STAB"(e.g. "ESTABELECIDO")

List apache2 virtualhosts
Lists virtualhosts currently enabled for apache2, showing the ServerName:port, conf file and DocumentRoot

Get a list of IP Addresses that have failed to login via SSH
This command shows a sorted list of the IP addresses from which there have been authentication errors via SSH (possible script kiddies trying to gain access to your server), it eliminates duplicates so it's easier to read, but you can remove the "uniq" command at the end, or even do a "uniq -c" to have a count of how many times each IP address shows in the log (the path to the log may vary from system to system)

List your MACs address
List all MAC addresses on a Linux box. sort -u is useful when having virtual interfaces.

Get your Tweets from the command line
Gets the latest Tweets in your friends timeline from Twitter. Uses curl and xmlstarlet.

Count number of files in subdirectories
For each directory from the current one, list the counts of files in each of these directories. Change the -maxdepth to drill down further through directories.


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