Linux/Parsing

lines

• grep

grep -v '^\s*$'        # remove empty lines

• tail

tail 
tail -f                # follow
tail -n 10             # last 10 lines
tail +3                # skip first 3 lines 

• wc

wc -l                  # count lines 

chars

• cut
• tr

sed & awk

• sed + control characters

sed 's/\x00/controlcharwashere/g'

sed -n '/Iowa/,/Montana/p'

other

• slowing output

cat incoming.log | pv -qL 1000 | tee temp

• show as hex

od -t x1 -An

Links

• http://www.unix.com/tips-tutorials/18009-12-ways-parse-file.html
• http://sed.sourceforge.net/sed1line.txt
• http://www.grymoire.com/Unix/Sed.html