Commands by carlitos77 (1)

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Reinstall a Synology NAS without loosing any data from commandline.
Seen many questions how-to reinstall synology nas dsm without loosing data, here you go. Wait for a few min and then head over to http://nasip and setup your fresh installed nas.

Get all files of particular type (say, PDF) listed on some wegpage (say, example.com)
See man wget if you want linked files and not only those hosted on the website.

find and delete empty dirs, start in current working dir

Amazing real time picture of the sun in your wallpaper
Changes the wallpaper for the last IR picture of the sun taken by SOHO satellite. Lesser size, try $ curl http://sohowww.nascom.nasa.gov/data/realtime/eit_195/512/latest.jpg | xli -onroot -fullscreen -xzoom 120 -yzoom 120 -border black stdin I use inside kalarm(kde), updating every 15 minutes needs xli , curl

find the 10 latest (modified) files
order the files by modification (thanks stanishjohnd) time, one file per output line and filter first 10

Quick access to the ascii table.

Find out how old a web page is
I used to use the Firefox "View page info" feature a lot to determine how stale the web page I was looking at was. Now that I use mostly Chrome I miss that feature, so here is a command line alternative using wget. The -S says to display the server response, the --spider says to not download any files/pages, just fetch the header. The output goes to stderr, so to grep it you use 2>&1 to combine the stderr stream with stdout, the pipe that to grep for Last-Modified. You can use curl instead if you have it installed, like this: $ curl --head -s http://osswin.sourceforge.net | grep Mod

Check difference between two file directories recursively

Coping files, excluding certain files
Preserve file structure when coping and exclude some file o dir patterns

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

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