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discard some lines from file

Posted on 2006-11-29
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Last Modified: 2010-04-22
i want discard some lines from file, despite of the case sensitive

so let's take as example
these 3 terms
"file created in"
"author"
and
"first statement"
these lines can contain other things than this expression
so how have i to do to change the file and let only lines which don't contain theses expression with awk program

thanks for ur help


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Question by:laes_
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8 Comments
 
LVL 2

Author Comment

by:laes_
ID: 18037621

a have tried this, but i don't know why i it doesn't work!?

tolower($0) !~ /^*file created in*/ && tolower($0) !~ /^*first statement*/  && tolower($0) !~ /^*author*/ { print }
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Expert Comment

by:ahoffmann
ID: 18037740
egrep -i -v '(file created in|author|first statement)' file
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Author Comment

by:laes_
ID: 18037749
and with awk, could u tell me how?
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LVL 51

Accepted Solution

by:
ahoffmann earned 80 total points
ID: 18038036
awk '/[AaUuTtHhOoRr]/{next}/[FfIiLlEe CcRrEeAaTtEeDd IiNn]/{next}{print}' file
0
 
LVL 2

Author Comment

by:laes_
ID: 18038393
ahoffmann,
its an exercice that the teacher gives us , she demands us to use awk and either tolower or toupper



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LVL 51

Expert Comment

by:ahoffmann
ID: 18040250
man gawk

http:/help.jsp#hi56 homework
http:/help.jsp#hi130 homework

BTW, you initial code works if you use proper brackets ;-)
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