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Top Forums Shell Programming and Scripting AWK (how) to get smallest/largest nr of ls -la Post 302412206 by abciscool on Monday 12th of April 2010 04:58:43 AM
Old 04-12-2010
AWK (how) to get smallest/largest nr of ls -la

Hey,

This is a long-shot however, I am stuck with the following problem:

I have the output from ls -la, and I want to sort some of that data out by using AWK to filter it.

ls -la | awk -f scriptname.awk
Input:
Code:
For example:
drwxr-xr-x 3 user users  4096 2010-03-14 20:15  bin/
drwxr-xr-x 2 user users  4096 2010-03-14 21:15  Desktop/
-rw-r--r-- 1 user users    81 2010-03-14 22:15  dirs.txt
drwxrwxrwx 2 user users  4096 2010-03-14 23:15  pub/
-rw-r--r-- 1 user users 13910 2010-03-14 0:15   y.txt
etc... 

I wanted to sort out:
- The smallest filesize ($5)
- The biggest filesize ($5)
- The oldest file ($6 & $7?)
- The newest file ($6 & $7?)


I'm really sorry and ashamed that I can't make this script myself. I've been trying to figure it out for the last day, and I just can't Smilie. I really tried a lot of options, and also the old-fashion way of writing in text what the program should do and then write it out in code, however I just don't know where to start. I guess my sense of logic is failing miserably.

I really, really hope someone can help me out.

- Mario de Rooy (Netherlands)

---------- Post updated at 09:58 AM ---------- Previous update was at 09:52 AM ----------

My general logic was:
Code:
min=max=0
{ 
   if($5 > max)
   max++
else if
 
and now I'm already "brain-frozen":(...


Last edited by abciscool; 04-12-2010 at 06:06 AM.. Reason: Adding context.
 

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fntsample(1)						      General Commands Manual						      fntsample(1)

NAME
fntsample - PDF and PostScript font samples generator SYNOPSIS
fntsample [ OPTIONS ] -f FONT-FILE -o OUTPUT-FILE fntsample -h DESCRIPTION
fntsample program can be used to generate font samples that show Unicode coverage of the font and are similar in appearance to Unicode charts. Samples can be saved into PDF (default) or PostScript file. OPTIONS
fntsample supports the following options. --font-file, -f FONT-FILE Make samples of FONT-FILE. --font-index, -n IDX Font index for FONT-FILE specified using --font-file option. Useful for files that contain multiple fonts, like TrueType Collec- tions (.ttc). By default font with index 0 is used. --output-file, -o OUTPUT-FILE Write output to OUTPUT-FILE. --other-font-file, -d OTHER-FONT Compare FONT-FILE with OTHER-FONT. Glyphs added to FONT-FILE will be highlighted. --other-index, -m IDX Font index for OTHER-FONT specified using --other-font-file option. --postscript-output, -s Use PostScript format for output instead of PDF. --svg, -g Use SVG format for output. The generated document contains one page. Use range selection options to specify which. --print-outline, -l Print document outlines data to standard output. This data can be used to add outlines (aka bookmarks) to resulting PDF file with pdfoutline program. --include-range, -i RANGE Show characters in RANGE. --exclude-range, -x RANGE Do not show characters in RANGE. --style, -t "STYLE: VAL" Set STYLE to value VAL. Run fntsample with option --help to see list of styles and default values. --help, -h Display help text and exit. Parameter RANGE for -i and -x can be given as one integer or a pair of integers delimited by minus sign (-). Integers can be specified in decimal, hexadecimal (0x...) or octal (0...) format. One integer of a pair can be missing (-N can be used to specify all characters with codes less or equal to N, and N- for all characters with codes greather or equal to N). Multiple -i and -x options can be used. EXAMPLES
Make PDF samples for font.ttf and write them to file samples.pdf: fntsample -f font.ttf -o samples.pdf Make PDF samples for font.ttf, compare it with oldfont.ttf and highlight new glyphs. Write output to file samples.pdf: fntsample -f font.ttf -d oldfont.ttf -o samples.pdf Make PostScript samples for font.ttf and write output to file samples.ps. Show only glyphs for characters with codes less or equal to U+04FF but exclude U+0370-U+03FF: fntsample -f font.ttf -s -o samples.ps -i -0x04FF -x 0x0370-0x03FF Make PDF samples for font.ttf and save output to file samples.pdf adding outlines to it: fntsample -f font.ttf -o temp.pdf -l > outlines.txt pdfoutline temp.pdf outlines.txt samples.pdf AUTHOR
Copyright (C) 2007 Eugeniy Meshcheryakov <eugen@debian.org> Homepage: <http://fntsample.sourceforge.net/> SEE ALSO
pdfoutline(1) 2010-10-14 fntsample(1)
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