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Clone directory structure without the files
opposite of https://www.commandlinefu.com/commands/view/10014/urldecoding-with-one-pure-bash-builtin ;-)
Google just released a new commend line tool offering all sorts of new services from the commend line. One of them is uploading a youtube video but there are plenty more google services to interact with.
Download it here: http://code.google.com/p/googlecl/
Manual: http://code.google.com/p/googlecl/wiki/Manual
This specific command courtesy of lifehacker:http://lifehacker.com/5568817/
Though all can be found in manual page linked above.
Rather than complicated and fragile paths relative to a script like "../../other", this command will retrieve the full path of the file's repository head. Safe with spaces in directory names. Works within a symlinked directory. Broken down:
$cd "$(dirname "${BASH_SOURCE[0]}")"
temporarily changes directories within this expansion. Double quoted "$(dirname" and ")" with unquoted ${BASH_SOURCE[0]} allows spaces in the path.
$git rev-parse --show-toplevel
gets the full path of the repository head of the current working directory, which was temporarily changed by the "cd".
watch is a command especially designed for doing this job
sudo ipfw pipe 1 config bw 50KByte/s
Set the bandwidth (bw) limit to any number you want. For example you could have a 15kb pipe for X application and then a 100kb pipe for another application and attach things to those pipes. If a port isn’t attached to a pipe, it runs at full speed. Change the number (in this case 1) to a different number for a different pipe.
The next step is to attach your port.
sudo ipfw add 1 pipe 1 src-port 80
In this case anything on port 80 (http) will be set to a limit of 50Kbyte/s. If you want to attach a second port to this pipe, repeat the command but change the port number at the end.
src : http://www.mactricksandtips.com/2008/12/throttling-bandwidth-on-a-mac.html
sort command can sort month-wise (first three letters of each month).
See the sample output for clarification.
Sorting Stable ? NO. Take note if that matters to you.
Sample output suggests that sort performs unstable
sorting (see the relative order of two 'feb' entries).
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
