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Top Forums Shell Programming and Scripting Trouble with part of an exercise Post 302337833 by Phass on Saturday 25th of July 2009 04:58:55 PM
Old 07-25-2009
Trouble with part of an exercise

Hi, 'm trying to do an exercicise, and one part is:

Code:
ls -l $1 | awk '
    BEGIN {
       max = $5;
    }
    {
       if ($5 > max){
          max = $5;
       }
    }
    END {
    print "Tamanio mayor fichero = " max; }'

# Imprimimos ahora el menor tamaņo de fichero
ls -l $1 | awk '
    BEGIN {
       min = $5;
    }
    {
       if ($5 < min){
          min = $5;
       }
    }
    END {
    print "Tamanio menor fichero = " min; }'

Seek the maximum and minimum size of files that are to implement the command ls-l. The problem is that it shows me the right way to screen the most, but not the least, and more turns that I fail to see what could be the problem.

Thanks

Last edited by Franklin52; 07-26-2009 at 10:08 AM.. Reason: adding code tags
 

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LAM(1)							    BSD General Commands Manual 						    LAM(1)

NAME
lam -- laminate files SYNOPSIS
lam [-f min.max] [-s sepstring] [-t c] file ... lam [-p min.max] [-s sepstring] [-t c] file ... DESCRIPTION
The lam utility copies the named files side by side onto the standard output. The n-th input lines from the input files are considered frag- ments of the single long n-th output line into which they are assembled. The name `-' means the standard input, and may be repeated. Normally, each option affects only the file after it. If the option letter is capitalized it affects all subsequent files until it appears again uncapitalized. The options are described below: -f min.max Print line fragments according to the format string min.max, where min is the minimum field width and max the maximum field width. If min begins with a zero, zeros will be added to make up the field width, and if it begins with a `-', the fragment will be left- adjusted within the field. -p min.max Like -f, but pad this file's field when end-of-file is reached and other files are still active. -s sepstring Print sepstring before printing line fragments from the next file. This option may appear after the last file. -t c The input line terminator is c instead of a newline. The newline normally appended to each output line is omitted. To print files simultaneously for easy viewing use pr(1). EXAMPLES
The command lam file1 file2 file3 file4 joins 4 files together along each line. To merge the lines from four different files use lam file1 -S " " file2 file3 file4 Every 2 lines of a file may be joined on one line with lam - - < file and a form letter with substitutions keyed by `@' can be done with lam -t @ letter changes SEE ALSO
join(1), paste(1), pr(1), printf(3) STANDARDS
Some of the functionality of lam is standardized as the paste(1) utility by IEEE Std 1003.2 (``POSIX.2''). HISTORY
The lam utility first appeared in 4.2BSD. BUGS
The lam utility does not recognize multibyte characters. BSD
August 12, 2004 BSD

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