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Full Discussion: Awk: printing column using for loop
Top Forums Shell Programming and Scripting Awk: printing column using for loop Post 303011330 by genome on Tuesday 16th of January 2018 07:12:16 PM
Old 01-16-2018
Hi Rudic:

Even if I do:

Code:
 awk '{out=""; for(i=6;i<=NF;i++){out=$out" "$i}; print $out}' pot.txt

This doesn't have any variables that print from first column.

Code:
print 3,3":"$3":"$4":"$5,$3,$4,$5

I'm making new string with $3":"$4":"$5 and then print column 3, 4,5

There's not column one that could be possible be printed with this code.

How did you come to this:?

Code:
awk '{$1 = 3}1' file

Last edited by genome; 01-16-2018 at 08:13 PM.. Reason: grammar
 

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LEARN ABOUT REDHAT

pbm2ppa

pnm2ppa(5 Feb 2000)													       pnm2ppa(5 Feb 2000)

NAME

       pbm2ppa - convert portable bitmap (PBM) to HP's Printing Performance Architecture (PPA) file format

SYNOPSIS

       pbm2ppa [options] [ <infile] > [ <outfile]> ] ]

DESCRIPTION

       Reads  portable bitmap (PBM) format as input.  Outputs a stream suitable for processing by  Hewlett-Packard's range of Printing Performance
       Architecture (PPA) printers.  pnm2ppa supports the HP 710c, 712c, 720c, 722c, 820c, and 1000c series printers.

       (Portable bitmap (PBM) format output can be produced from PostScript(tm) input by the GhostScript driver "pbmraw".)

OPTIONS

       infile Input file infile is either a path to a file or device, or '-' to indicate stdin (defaults to stdin)

       outfile
	      Output file outfile is either a path to a file or device, or '-' to indicate stdout (defaults to stdout)

       -b bottommargin
	      Sets the bottom margin bottommargin in units of 1/600 inches (e.g.,  -b 150 = 0.25")

       -d     Displays the current configuration

       -f configfile
	      Overrides reading the configuration from /etc/pnm2ppa.conf, and uses configfile instead.

       -h     Displays program usage

       -l leftmargin
	      Sets the left margin leftmargin in units of 1/600 inches (e.g., -l 150 = 0.25")

       -r rightmargin
	      Sets the right margin rightmargin in units of 1/600 inches (e.g., -r 150 = 0.25")

       -s papersize
	      Sets the paper size. Possible values for papersize are a4 (A4), letter or us (US Letter, 8.5"x11"), and legal (US Legal,	8.5"x14").
	      The default is US Letter.

       -t topmargin
	      Sets the top margin topmargin in units of 1/600 inches (ie -t 150 = 0.25")

       -v printertype
	      Selects the printer model.  Possible values of printertype are: 710, 712, 720, 722, 820 and 1000.  The default is the HP DeskJet 7X0
	      Series (710, 712, 720, 722).

       -x xoffset
	      Sets the x-offset xoffset from the left of the page. Units are 1/600 inches

       -y yoffset
	      Sets the y-offset yoffset from the top of the page. Units are 1/600 inches

NOTES

       The configuration file is read in first. Command line arguments then modify the resulting definitions.

       The -x and -y options accumulate. The -v option resets all definitions back to an inbuilt default for  that  printer  and  should  be  used
       before subsequent -b -l -r, -t,	-x, and -y arguments.

SEE ALSO

       pbm(5)

FILES

       /etc/pbm2ppa.conf
	      Default configuration file

AUTHOR

       This code is licensed under the GNU Public License version 2. See LICENSE for details.

       (c) 1998  Tim Norman

HISTORY

       This  program was written by Tim Norman. It originally supported black and white output on the 820 series. This program is almost obsolete;
       its successor pnm2ppa will support color printing.

BUGS

       This is a stable driver, but does not support color printing.

															       pnm2ppa(5 Feb 2000)
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