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How to remove a line from a file

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Top Forums Shell Programming and Scripting How to remove a line from a file
# 1  
Old 06-24-2010
Bug How to remove a line from a file
./xxibe
./xxibe/11.5.0
./xxibe/11.5.0/admin
./xxcyb/11.5.0/reports/US
./xxkintana
./xxkintana/1016454
./xxkintana/1016454/backup
./xxkintana/1016454/updates
./xxcpf/11.5.0/xml_gw
./xxcse
./xxcse/11.5.0
./xxcse/11.5.0/admin


I have a file (sample.txt) this file contains above text.
I need to remove (delete) the lines from the file which are in RED color means which are starts with ./xxk

Thanks in Advance.
Gagan
Last edited by gagan4599; 06-24-2010 at 05:55 AM.. Reason: modified content
# 2  
Old 06-24-2010
Try,

Code:
$ grep -v xxkintana sample.txt

# 3  
Old 06-24-2010
as said by agn the query will work perfectly for the given case.
if the pattern is similar then it will work definately...
# 4  
Old 06-24-2010
Quote:
Originally Posted by agn
Try,

Code:
$ grep -v xxkintana sample.txt



Hai Agn,

the above command deleting lines and showing output at $ prompt, but when i opened the sample.txt file the lines are still there only.
I need to Remove the lines from the file and save.

Thanks in Advance
# 5  
Old 06-24-2010
Code:
cut -f1 -d `grep -v xxkitana sample.txt` >> output_file

try this. i havent checked it yet but something like this shud work

---------- Post updated at 04:12 AM ---------- Previous update was at 04:09 AM ----------

sorry this will not work dnt try...... let me try awk.. wait a sec

---------- Post updated at 04:16 AM ---------- Previous update was at 04:12 AM ----------

Code:
 
awk -v f=0 '/xxkintana/ {f=0} /xxkintana/1016454/updates/{f=1} { print > "file_"f }' input_file

try this it shud work.....
# 6  
Old 06-24-2010
Code:
cat sample.txt | grep -v '^./xxk' >> result.txt

# 7  
Old 06-24-2010
GNU sed,

Code:
sed -i '/xxkintana/d' sample.txt

starting with ./xxk

Code:
sed -i '/^\.\/xxk/d' sample.txt
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