Useful awk examples

awk_examples.sh

#searches for 'search_term' and prints all columns
awk '/search_term/' file.txt

#searches for 'search_term' and prints columns 1 and 4 separated with tab (the first column is index 1)
awk '/search_term/ {print $1 "\t" $4}' file.txt

#searches for 'search_term' and prints the number of occurances
awk '/search_term/{++cnt} END {print "Count = ", cnt}' file.txt

#print lines having more than 18 characters
awk 'length($0) > 18' file.txt