grep/cut/perl usage examples

grep -o
Only print the match part.
grep -A num
Print num lines after the match

grep "\<" match the empty string at the beginning
of the word
$ echo "so happy i am " | grep -o "\"
happy


echo -e "\t"
Show special chars in script string.

cut -s
do not print lines not containing delimiters

#!/bin/bash
for file in $(ls *.html)
do
        match=$(perl parse.pl $file | grep -A 1   Manufacturer:)
        manu=$(echo $match | grep -w -o  Manufacturer:.*Mfr | sed 's/Manufacturer://g'|  sed 's/M
fr//g')
        date=$(echo $match | grep -w -o  "Date:.*NHTSA CAMPAIGN"| sed 's/Date://g'|  sed 's/NHTSA
 CAMPAIGN//g')
        comp=$(echo $match | grep -w -o  Component:.*Potential | sed 's/Component: //g'|  sed 's/
Potential//g')
        num=$(echo $match | grep -w -o  Affected:.*Summary | sed 's/Affected: //g'|  sed 's/Summa
ry//g')

        echo -e  "$manu\t$comp\t$num\t$date" >> table
done

#       file1="${file%.html}.txt"
#       echo $file1
#       manu=$(grep "Manufacturer:" $newfile| cut -d":" -s -f 2)
#       date=$(grep "ReportDate:"  $newfile| cut -b 19-32)
#       date=$(grep "ReportDate:"  $newfile| cut -b 19-32)
#       comp=$(grep "Component:" $newfile|sed 's/Component:/\t/g' |)