10 UNIX Commands

less

grep

 egrep "/bin/ps$|/bin/netstat$" myfile.txt  Select lines ending by /bin/ps or /bin/netstat

awk

 awk '/firstmatch/,/lastmatch/' myfile.txt  Select a range of lines, starting with the line containing
                                            the string firstmatch and ending with the line that
                                            contains the line lastmatch
 awk '{print $NF}'                          Print the last column on the line

sort

 sort -n                                    Sort Numerically
 sort -u                                    Sort + Unique
 sort -k 5                                  Sort by the 5th field

sed