Shell
Concatenate & Compress (to from)
tar -cvzf filepath/filename.tar.gz filename
Extract multiple files (from to)
tar -xvzf filename.tar.gz
Copy files across systems(from to)
scp user@from-server:path/file user@to-server:path/file
Sort with count by column x
cut -d " " -f 2 raw.file | sort | uniq -c | sort -nr > ordered_by_freq_file
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References
www.watsys.unh.edu/Darlene/TechToolsFiles/LammersUNIXDemo/UNIX_Intro.html