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How to remove the values inside the html tags?

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# 1  
Old 10-15-2014
How to remove the values inside the html tags?
Hi,

I have a txt file which contain this:

Code:
<a href="linux">Linux</a>
<a href="unix">Unix</a>
<a href="oracle">Oracle</a>
<a href="perl">Perl</a>

I'm trying to extract the text in between these anchor tag and ignoring everything else using grep. I managed to ignore the tags but unable to remove the "href" and its values in my output. This is the code I used

Code:
grep -oP '(?<=<a).*(?=</a)' file.txt

When I run this codes, this is the output I have

Code:
href="linux">Linux
href="unix">Unix
href="oracle">Oracle
href="perl">Perl

# 2  
Old 10-15-2014
Any reason to insist on grep instead of sed or awk for parsing your input...
sed 's/\(.*>\)\(.*\)\(<.*\)/\2/g' file
or
awk -F"[<>]" '{print $3}' file
Last edited by shamrock; 10-15-2014 at 01:58 AM..
This User Gave Thanks to shamrock For This Post:
KCApple
# 3  
Old 10-15-2014
No, not really. I just want to learn how to use grep better.
# 4  
Old 10-15-2014
Would you use the butter knife to carve the turkey at dinner time?
grep is not the tool for what you want to learn.
What you want to learn is Regular Expressions, which ironically, it is not the best tool neither to parse html, other than simple instances.

Any questions?
This User Gave Thanks to Aia For This Post:
KCApple
# 5  
Old 10-15-2014
Hi KCApple,

Following awk solution may help you which is very easy too.

Code:
 awk -F["><"] '{print $3}' Input_file

Output will be as follows.
Code:
Linux
Unix
Oracle
Perl

EDIT: Just saw shamrok has given above solution, so one more soluiton on same.

Code:
awk '{gsub(/.*\">/,X,$0);gsub(/<.*/,Y,$0);print $0}' Input_file

Output will be as follows.
Code:
Linux
Unix
Oracle
Perl

Thanks,
R. Singh
Last edited by RavinderSingh13; 10-15-2014 at 02:44 AM.. Reason: Added one more solution as previous solution was given in previous edited post
This User Gave Thanks to RavinderSingh13 For This Post:
KCApple
# 6  
Old 10-15-2014
Try

Code:
[akshay@nio tmp]$ cat file
<a href="linux">Linux</a>
<a href="unix">Unix</a>
<a href="oracle">Oracle</a>
<a href="perl">Perl</a>

Code:
[akshay@nio tmp]$ grep -oP '(?<=>).*(?=</a>)' file
Linux
Unix
Oracle
Perl

---------- Post updated at 12:30 PM ---------- Previous update was at 12:23 PM ----------

Some more (g)awk

Code:
$ awk 'match($0,/(<a.*>)(.*)(<\/a>)/,m){print m[2]}' file

---------- Post updated at 12:32 PM ---------- Previous update was at 12:30 PM ----------

Perl

Code:
$ perl -nle 'm/<a.*?>(.+)<\/a/ig; print $1' file

---------- Post updated at 12:34 PM ---------- Previous update was at 12:32 PM ----------

Code:
$ perl -lpe 's/<a.*?>(.+)<\/a>/$1/g;' file

This User Gave Thanks to Akshay Hegde For This Post:
KCApple
# 7  
Old 10-15-2014
Thanks a lot! This work like charm Smilie

[/CODE]
Code:
[akshay@nio tmp]$ grep -oP '(?<=>).*(?=</a>)' file
Linux
Unix
Oracle
Perl

Didn't know that all I have to do is to remove the "a" in the first tags and here I'm trying to put several combination of regular expression in the first tag. There's more for me to learn.
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