Category Archives: Unix Tidbits

Batch Rename One-Liner

Posted on May 8, 2011 by Roy Sharon

Following is a simple way to perform batch renaming, using the Command line: ls *.jpg | awk ‘{print(“mv “$1” “$1)}’ | sed ‘s/jpg/jpeg/’ | /bin/sh If you wish to see the renaming commands before they are performed (just to make … Continue reading →

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Fast and Secure Remote File Transfer Using The Command Line

Posted on March 1, 2011 by Roy Sharon

One of the fastest ways to transfer files between remote machines is using SSH: tar -cz *.jpg | ssh <username@host> “tar -xzC <path-to-expand>” This will create a single compressed archive of all jpg files in the current directory, transfer them … Continue reading →

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Unix Tidbit: Most Requested Web Resources

Posted on August 15, 2010 by Roy Sharon

This is a quick and dirty way to find the most requested static resources of your site (e.g., images or javascript files), using Unix shell commands: grep -oE “GET /[^ \t]+\.(gif|png|js|css)” /var/log/httpd/access_log \ | sort | uniq -c | sort … Continue reading →

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Unix Tidbit: Color Coded Directory Listing

Posted on July 30, 2010 by Roy Sharon

Each time I move onto a new Unix machine (I recently bought a new iMac!), I change the look of the terminal directory listings, from this: to this: It’s quite simple — I edit one of the bash config files … Continue reading →

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