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#1
09-14-2005
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Subtract 100 from first field in long list? Simple manipulation?
It sounds so easy to do.
I have a file thats laid out like this.. number text text text text (etc about 15 times with various text fields) I want to take the first field, "number", subtract 100 from it, and then put it back in the file. a simple little manipulation of the first field in the file. is there an easy way to do this? So if it looks like 14523 a b c d e f 24245 g h i j k l it would end up being 14423 a b c d e f 24145 g h i j k 
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#2
09-14-2005
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Code:
awk '{ $1=$1-100; print $0} ' filename
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#4
09-14-2005
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Yes. $1 was a string on input - it got run thru a math operation so now it's a number.
Let's try to force it back to a string. Code:
awk '{ $1=$1-100; $1=sprintf("%s", $1); print $0} ' filename
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#5
09-14-2005
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Quote:
Code:
awk '{ $1=sprintf("%s", $1-100); print}' filename
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