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# 1  
Old 07-06-2005
erasing portion of line with sed

hi,

I'm trying to use sed to erase everything, and including the ending parenthesis. For example:
input: blah blah blah (12355)this is what i want.
output: this is what i want.

how would i do this?
i found an example online that does the opposite:
sed \"s|test.*||g\" file1 > file2";

but when i reverse it, it doesn't do anything. Any ideas?

thanks,
gammaman Smilie
# 2  
Old 07-06-2005
echo "blah blah blah (12355)this is what i want" | sed 's/.*)\(.*\)$/\1/'

Cheers
ZB
# 3  
Old 07-07-2005
Quote:
Originally Posted by zazzybob
echo "blah blah blah (12355)this is what i want" | sed 's/.*)\(.*\)$/\1/'

Cheers
ZB
thanks! this helped a lot
# 4  
Old 07-07-2005
erasing blank lines using sed

do you also know how I can erase only the blank lines of a huge file?

I was thinking something similar to this, but this might also erase the blank spaces on lines with words?
sed "s|*[]*||g" huge_file;

thanks,
gammaman
# 5  
Old 07-07-2005
Code:
sed '/^[    ]*$/d' huge_file

[ ] contains one space and one TAB character.

However perl would probably be a better tools to do this to a hugh file.
# 6  
Old 07-10-2005
to remove all the blank lines, you could also try ...

grep -v "^$" huge_file
 

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