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Show most common words in filenames
I'm sure there's a more elegant sed version for the tr + grep section.

Remove comments in XML file
In Redhat, xmlstarlet is called just xml which can be found in xmlstarlet RPM.

Rename files in batch

Find all files with colons and replace with underscores; current directory and below (recursive).

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Print a row of 50 hyphens

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Print just line 4 from a textfile
this method should be the fastest

Download an entire website from a specific folder on down

Gets the english pronunciation of a phrase
Sends a string to google tranlator, which converts it to English speech. It's possible to create a nice script to do the job for us, such as #!/bin'bash curl -A "Mozilla" "http://translate.google.com/translate_tts?tl=en&q=$1" > /tmp/speak.mp3 mplayer /tmp/speak.mp3


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