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Shell Programming and Scripting

copy line to new file if word matches

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# 1  
Old 02-17-2011
copy line to new file if word matches
I'm drawing blank on this. The log file I have is filled with garbage, but the important lines are ##/##/### Installation xxxxxxx
So, I want to sed the line to a new file IF the word installation is in it.
I tried removing none matching lines
Code:
sed 's/Installation/,//!d' infile > outfile

but that didn't work.
# 2  
Old 02-17-2011
If you want to select the lines with "Installation":
Code:
egrep 'Installation' input_file

# 3  
Old 02-17-2011
Hi,

Something like this using 'sed':
Code:
$ sed -ne '/installation/Iw outfile' infile

Regards,
Birei
# 4  
Old 02-17-2011
Code:
awk '/Installation/' input_file

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