Shell Programming and Scripting

"USER      PID     PPID  %CPU  %MEM  STARTED        TIME   VSZ   RSS COMMAND"

"1   USER      PID     PPID  %CPU  %MEM  STARTED        TIME   VSZ   RSS COMMAND"
"2  USER      PID     PPID  %CPU  %MEM  STARTED        TIME   VSZ   RSS COMMAND"
"3  USER      PID     PPID  %CPU  %MEM  STARTED        TIME   VSZ   RSS COMMAND"......

i=1
add=$i
while read line;
do
    `sed -n /USER/,/COMMAND/p | sed  "s/^/$add /g" > ft_tmp.log`
    let add=add+1
    let i=i+1
done

grep 'USER PID PPID %CPU %MEM STARTED TIME VSZ RSS COMMAND' yourfile| cat -n

add=1
while read line
do
    prefix=`echo "${line}"|cut -c1-4`
    if [ "${prefix}""X" = "USER""X" ]
    then
          echo "${add} ${line}"
    else
          echo "${line}"
    fi
    add=`expr ${add} + 1`
done < filename >ft_tmp.log