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Full Discussion: Formatting columns in file
Top Forums Shell Programming and Scripting Formatting columns in file Post 302862307 by ctsgnb on Thursday 10th of October 2013 01:23:58 PM
Old 10-10-2013
Taking the example you provide :
Code:
$ cat tst
Policy Name Name Volume
VLS-EDWARDS-ARCHIVED_FILE-WINDOWS 10 12
XLZ-BASE-CYGWIN-ARCHIVED-FILE-LINUX 2 21
ZLX-GOLD-FILES-JAPANFILERS1-LINUX 20 27
ZLX-GOLD-FILES-JAPANFILERS2-LINUX13 29
ZLX-GOLD-FILES-JAPANFILERS3-LINUX 20 20
ZLX-GOLD-FILES-JAPANFILERS4-LINUX19 19
$ sed 's/LINUX */LINUX /' tst |  awk '{print $0,(NR>1?$NF-$(NF-1):z)}'
Policy Name Name Volume 
VLS-EDWARDS-ARCHIVED_FILE-WINDOWS 10 12 2
XLZ-BASE-CYGWIN-ARCHIVED-FILE-LINUX 2 21 19
ZLX-GOLD-FILES-JAPANFILERS1-LINUX 20 27 7
ZLX-GOLD-FILES-JAPANFILERS2-LINUX 13 29 16
ZLX-GOLD-FILES-JAPANFILERS3-LINUX 20 20 0
ZLX-GOLD-FILES-JAPANFILERS4-LINUX 19 19 0
$

The first sed statement is used in order to reformat correctly your output especially regarding
LINUX13 and LINUX19 which - i suppose - should be LINUX 13 and LINUX 19 instead (the number must be separated from the string)

Then awk print the line adding the substraction of last-1 field from last field.
The NR>1 is used to skip the header line
 

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LEARN ABOUT SUSE

alevt-date

ALEVT-DATE(1)							   Teletext time						     ALEVT-DATE(1)

NAME

       alevt-date - display/set time received via Teletext

SYNOPSIS

       alevt-date [options]

DESCRIPTION

       alevt-date displays the time received from a Teletext source.  It can be used to set the system time.  The date is not interpreted (not
       even transmitted on most channels).  So it allows only adjustment of +/-12 hours.  The default allowed adjustment is limited to +/-2 hours
       (use -delta to change).	Without the -set option it just displays the date in the format of the date(1) command.

OPTIONS

       A summary of options is included below.

       -set		 Set system time from time received via Teletext.

       -delta seconds	 Maximum allowed adjustment made to the system time.  The default is 7200 seconds (2 hours) and the maximum that may be
			 given is 12 hours.

       -format string	 Format string to used to print the time.  Look at strftime(3) for possible control sequences.

       -vbi device	 Use the given device name (default: /dev/vbi0).

       -timeout seconds  If the time can't be detected in seconds, the program is terminated with a SIGALRM.

       --help		 Show summary of options.

       --version	 Show version of program.

       Before starting this program, you have to set the TV channel with another program like xawtv of set-tv.

       Note: This program does not set the battery backed up clock of your computer.  clock -w will do this.

FILES

       /dev/vbi*

SEE ALSO

       alevt(1x), alevt-cap(1), strftime(3), date(1), clock(8).

BUGS

       This program is just a toy.  The time transmitted by the TV stations is more than inaccurate.  Some are within a few seconds of your local
       time reference but others are more then 15 minutes off.	You've been warned.  (And don't assume the pkt8/30 time is better.  It's even
       worse.)

       No bug reports to <froese@gmx.de> *g*.

LINUX
								       1.6.2							     ALEVT-DATE(1)
All times are GMT -4. The time now is 06:51 AM.
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