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Selecting a line value


 
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# 1  
Old 02-12-2008
Selecting a line value

Hello,

I just wanted to know if there is a way in UNIX to select a line value from a list of words. there is no line number before each word, hence could not use grep.
# 2  
Old 02-12-2008
Quite hard to comprehend.

Could you please furnish sample input and desired output ?
# 3  
Old 02-12-2008
Assuming that you want to get the value of the list in a filie.
The below code gets the value of the first line in a file
Quote:
set -- `head -1 $FILE | cat` && VAR=$1
To get the value of the 5th line in afile
Quote:
set -- `head -5 $FILE | tail -1 | cat` && VAR=$1
# 4  
Old 02-12-2008
@ bobbygsk

many thanks for the insight, it really did help
# 5  
Old 02-12-2008
Perhaps it's more efficient to use sed. To print line 25:

Code:
sed '25q;d' file

Or with awk:

Code:
awk 'NR==25{print;exit}' file

Regards

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Test Your Knowledge in Computers #914
Difficulty: Medium
In bash, grep -v -e '^[[:space:]]*$' file.txt will filter all the blank lines from file.txt and save the results in a file called file.txt.
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