Ls -ltr in scripting Post: 302947015

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Top Forums Shell Programming and Scripting Ls -ltr in scripting Post 302947015 by wisecracker on Sunday 14th of June 2015 03:14:09 PM

06-14-2015

Registered User

Longhand using OSX 10.7.5, default terminal using sh...
Think of your problem and adapt. As you were attempting to use builtins then 'KIS', (Keep It Simple).

Code:

Last login: Sun Jun 14 20:01:53 on ttys000
AMIGA:barrywalker~> sh
AMIGA:barrywalker~> ls -ltr > /tmp/listing
AMIGA:barrywalker~> while read line; do echo "List of files $line"; done < /tmp/listing
List of files total 3056
List of files drwxr-xr-x+  5 barrywalker  staff     170 29 Mar  2013 Public
List of files drwxr-xr-x   3 barrywalker  staff     102  6 May  2014 URL
List of files drwx------+  5 barrywalker  staff     170 17 Oct  2014 Music
List of files drwx------+  5 barrywalker  staff     170 17 Oct  2014 Pictures
List of files drwx------+  4 barrywalker  staff     136 17 Oct  2014 Documents
List of files drwx------@ 38 barrywalker  staff    1292 24 Oct  2014 Library
List of files -rwxr-xr-x   1 barrywalker  staff  128656 22 Nov  2014 03080.sh
List of files -rwxr-xr-x   1 barrywalker  staff  128990  6 Dec  2014 03083.sh
List of files -rwxr-xr-x   1 barrywalker  staff  131697  7 Dec  2014 03090.sh
List of files -rwxr-xr-x   1 barrywalker  staff  134772 29 Dec 21:05 03100.sh
List of files -rwxr-xr-x   1 barrywalker  staff  135072 30 Jan 20:30 03120.sh
List of files drwxr-xr-x  42 barrywalker  staff    1428  2 Feb 22:14 Scope
List of files -r--------   1 barrywalker  staff  140746  3 Apr 11:32 03140.sh
List of files drwxr-xr-x  15 barrywalker  staff     510  6 Apr 18:16 sox-14.4.0
List of files -rw-r--r--   1 barrywalker  staff  146294  9 May 17:02 03180.sh
List of files -rwxr-xr-x   1 barrywalker  staff  146712 19 May 19:25 AudioScope.txt
List of files -rwxr-xr-x   1 barrywalker  staff    1452 23 May 23:26 AAWG
List of files drwx------+ 11 barrywalker  staff     374 30 May 14:29 Desktop
List of files drwx------+  5 barrywalker  staff     170  1 Jun 15:44 Movies
List of files -rwxr-xr-x   1 barrywalker  staff  147913  1 Jun 22:02 AudioScope.sh.txt
List of files -rw-r--r--   1 barrywalker  staff  147913  2 Jun 18:59 03197.sh
List of files -rwxr-xr-x   1 barrywalker  staff  149973  2 Jun 22:15 AudioScope.sh
List of files drwx------+ 18 barrywalker  staff     612 11 Jun 09:59 Downloads
AMIGA:barrywalker~> exit
exit
AMIGA:barrywalker~> exit
logout

[Process completed]

wisecracker

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LEARN ABOUT V7

ppmtosixel

ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.	The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
	      pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order	of  magni-
	      tude larger than a compressed file and prints much slower.

       -margin
	      If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
	      fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater	than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

								   26 April 1991						     ppmtosixel(1)

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