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Convert diff output to HTML ins/del

tar exclude files or directories
If you want to exclude only one file or directory you should use as --exclude=file_or_directory

Replace multiple file extensions with a single extension
The above is just a prove of concept based around the nested bash substitution. This could be useful in situations where you're in a directory with many filetypes but you only want to convert a few. $ for f in *.bmp *.jpg *.tga; do convert $f ${f%.*}.png; done or you can use ls | egrep to get more specific... but be warned, files with spaces will cause a ruckus with expansion but the bash for loop uses a space delimited list. $ for f in $(ls | egrep "bmp$|jpg$|tga$"); do convert $f ${f%.*}.png; done I'm guessing some people will still prefer doing it the sed way but I thought the concept of this one was pretty neat. It will help me remember bash substitutions a little better :-P

Replace space in filename
This commands removes space from all the files with specific extension. I've specifed *.jpg as an example.

Monitor all DNS queries made by Firefox

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

ps a process keeping the header info so you know what the columns of numbers mean!
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 1828 0.0 0.0 5396 476 ? Ss 2008 0:00 /usr/sbin/sshd

How to extract 5000 records from each table in MySQL
How to extract data from one table: mysqldump --opt --where="true LIMIT 5000" dbinproduzione tabella > miodbditest_tabella.sql

Resolve the "all display buffers are busy, please try later" error on a Foundry

List by size all of the directories in a given tree.


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