Deleting Block of Text from a File


 
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# 1  
Old 11-25-2011
Deleting Block of Text from a File

Hi

I am looking for the way to delete the block of data for example
Code:
original file
line1
line2
line3
line4
line5

input file
line2
line3

original file should contain
line1
line4
line5

i have tried the below code but it consumes heavy CPU as it uses 2 pipes though it serves my purpose , my original file and input files may contain thousands of files .
Code:
sdiff -d org_file in_file | grep "<" | awk '{print $1}'

Please suggest some suggestion
# 2  
Old 11-25-2011
Hi,

you can try:
Code:
egrep -v -f input.txt original.txt > output.txt

see ya
fra
This User Gave Thanks to frappa For This Post:
# 3  
Old 11-25-2011
-bash-3.2$
Code:
cat  ori-file

line1
line2
line3
line4
line5
-bash-3.2$
Code:
cat  input-file

line2
line3

Code:
-bash-3.2$ grep -v -f input-file  ori-file

line1
line4
line5
This User Gave Thanks to ningy For This Post:
# 4  
Old 11-28-2011
Hi

the above both scripts are working for good for the above example but it does not when i gave a input_file of 1300 lines , i have waited more than 2 mins and then has to hit ctl + c

Code:
serverx:/tmp> grep -v -f deletelist Commulative_bak
^C
servery:/tmp>

 
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