10-17-2008
how to flip values of two columns and add an extra column
Hi guys,
Couldn't find the solution of this problem. Please Help!
I have a file-
Input_File
TC200232 92 30
TC215306 2 74
TC210135 42 14
I want an output file in which if column2>column3, the values are swapped and an additional column with value Rev_Com is added to those rows.
Output_File
TC200232 30 92 Rev_Com
TC215306 2 74
TC210135 14 42 Rev_Com
Thanks in advance.
Last edited by smriti_shridhar; 10-17-2008 at 08:37 AM..
Reason: formatting
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LEARN ABOUT FREEBSD
colrm
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