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Shell Programming and Scripting

if condition

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# 1  
Old 06-27-2012
if condition
if
Code:
chr1:109457160 1 109457160 99.1735537190083 +
chr1:109457233 1 109457233 99.1735537190083 -
chr1:109457614 1 109457614 99.1735537190083 +
chr1:109457618 1 109457618 100 +
chr1:109457943 1 109457943 100 -
chr1:109458224 1 109458224 99.1735537190083 -

file1.txt

If 6th column in file1.txt is -, i want to grab all the rows and print them and save it as a minus. txt

the output will be
Code:
chr1:109457233 1 109457233 99.1735537190083 -
chr1:109457943 1 109457943 100 -
chr1:109458224 1 109458224 99.1735537190083 -

Last edited by Franklin52; 06-28-2012 at 04:37 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 06-27-2012
Maybe it's not this simple, but, couldn't you just grep it out?

Code:
grep - file1.txt >> minus.txt

This User Gave Thanks to jtollefson For This Post:
johnkim0806
# 3  
Old 06-27-2012
If you only want to catch '-' in field 6, you'll want this:
Code:
awk -F'[ :]' '$6=="-"' file1.txt

This User Gave Thanks to tukuyomi For This Post:
johnkim0806
# 4  
Old 06-27-2012
Is the minus always the last character on a line?
Code:
grep '\-$' x.dat >> minus.txt

This User Gave Thanks to gary_w For This Post:
johnkim0806
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