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Top Forums UNIX for Dummies Questions & Answers awk to add/subtract an integer to/from each entry in columns? Post 302881878 by Twinklefingers on Thursday 2nd of January 2014 01:58:21 PM
Old 01-02-2014
awk to add/subtract an integer to/from each entry in columns?

---------- Post updated at 01:58 PM ---------- Previous update was at 01:48 PM ----------

For some reason my question is not getting printed. Here are the details:

Greetings.

I would like to add/subtact an integer to/from two columns of integers. I feel like this should be easy using awk but can't think of how.

Example Input:
Code:
101	110
105	150
199	300
445	500

I want to add/subract 100 for each entry

Example Output:
Code:
1	210
5	250
99	400
345	600

Thanks!
 

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COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME
colrm -- remove columns from a file SYNOPSIS
colrm [start [stop]] DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read from the standard input. Output is written to the standard output. If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec- ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not zero. Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7). EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs. SEE ALSO
awk(1), column(1), cut(1), paste(1) HISTORY
The colrm command appeared in 3.0BSD. BSD
August 4, 2004 BSD
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