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Install pip with Proxy
Installs pip packages defining a proxy

backup a directory in a timestamped tar.gz
creates a tar.gz with a name like: backup20090410_173053.tar.gz of a given directory. this file was made 10 April 2009 at 5:30:53pm see date's man page to customize the timestamp format

Translates a phrase from English to Portuguese
Translates a string from English to Portuguese by using google translator web service.

JSON processing with Python
Validates and pretty-prints the content fetched from the URL.

Get the dir listing of an executable without knowing its location

which program is this port belongs to ?
Sometimes you need to use a port that is already opened by some program , and you don't know who to "kill" for it to release - so, now you do !

Find Duplicate Files (based on size first, then MD5 hash)
Finds duplicates based on MD5 sum. Compares only files with the same size. Performance improvements on: $find -not -empty -type f -printf "%s\n" | sort -rn | uniq -d | xargs -I{} -n1 find -type f -size {}c -print0 | xargs -0 md5sum | sort | uniq -w32 --all-repeated=separate The new version takes around 3 seconds where the old version took around 17 minutes. The bottle neck in the old command was the second find. It searches for the files with the specified file size. The new version keeps the file path and size from the beginning.

Copy a file from a remote server to your local box using on-the-fly compression
-P displays a progress meter -z tells rsync to use compression

Find files that are older than x days
Find files that are older than x days in the working directory and list them. This will recurse all the sub-directories inside the working directory. By changing the value for -mtime, you can adjust the time and by replacing the ls command with, say, rm, you can remove those files if you wish to.

Arch Linux: Search for missing libraries using pacman
If, while using a program, you get an error similar to: error while loading shared libraries: libusb-0.1.so.4: cannot open shared object file: No such file or directory Use pacman or pkgfile to search for the package that owns the missing library https://wiki.archlinux.org/index.php/General_troubleshooting#Message:_%22error_while_loading_shared_libraries%22


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