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Full Discussion: Bash script to find comments in file
Top Forums Shell Programming and Scripting Bash script to find comments in file Post 302925883 by RavinderSingh13 on Thursday 20th of November 2014 01:07:31 AM
Old 11-20-2014
Quote:
Originally Posted by ksmarine1980
As I stated in a previous thread - I'm a newbie to Unix/Linux and programming. I'm trying to learn the basics on my own using a couple books and the exercises provided inside.

I've reached an exercise that has me stumped. I need to write a bash script that will will read in a file and print the line number and script line of all lines including comments. Normally this wouldn't be difficult, but I'm not supposed to use sed, awk, grep, etc (only Bash). I have the skeleton in place, but I'm missing how to pull only the comments and display the line number. Any help would be appreciated.

Code:
#!bin/bash
 
while read line
do
echo $line
done

Hello ksmarine1980,

Following may help you in same if we need to print line number along with line's content.

Code:
i- awk '{print NR OFS $0}' Input_file
ii- cat -n Input_file
iii- while read line
    do
    let "i = i + 1"
    echo $i " " $line
    done < "Input_file"


Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
ksmarine1980
 

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