how read specific line in a file and write it in a new text file?


 
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# 1  
Old 02-15-2012
how read specific line in a file and write it in a new text file?

I have list of files in a directory 'dir'. Each file is of type HTML. I need to read each file and get the string which starts with 'http' and write them in a new text file. How can i do this shell scripting?

file1.html
Code:
<head>
<url>http://www.google.com</url>
</head>

file2.html
Code:
<head>
<url>http://www.yahoo.com</url>
</head>

text.txt
Code:
http://www.google.com
http://www.yahoo.com

# 2  
Old 02-15-2012
Assuming your file*.html just contain what you mentionned in your example:

Code:
grep -ho "http:[^<]*" file*.html >>text.txt


Last edited by ctsgnb; 02-15-2012 at 06:41 AM..
# 3  
Old 02-15-2012
you can try this Smilie
Code:
# sed -n '/^<url>/s/<[^>]*>//gp' file*.html >>text.txt
# cat text.txt
http://www.google.com
http://www.yahoo.com

regards
ygemici

---------- Post updated at 11:37 AM ---------- Previous update was at 11:34 AM ----------

Quote:
Originally Posted by ctsgnb
Assuming your file*.html just contain what you mentionned in your example:

Code:
grep -o "http:[^<]*" file*.html >text.txt

maybe you can add "-h" to grep for suppress filenames
These 2 Users Gave Thanks to ygemici For This Post:
# 4  
Old 02-15-2012
@ygemici

Oooops, thx... fixed ! Smilie
# 5  
Old 02-15-2012
How to content where it ends with &CS=3

Ex:
Code:
http://www.google.com/test/&CS=3
http://www.google.com/sample/&CS=3
http://www.google.com/hello/&CS=3

text.txt
Code:
http://www.google.com/test/
http://www.google.com/sample/
http://www.google.com/hello/

# 6  
Old 02-15-2012
just remove it Smilie
Code:
# sed 's/&CS=3//' file1>text.txt

# 7  
Old 02-15-2012
Thank you.
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