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Full Discussion: Sorting - Reg.
Top Forums Shell Programming and Scripting Sorting - Reg. Post 302415819 by durden_tyler on Friday 23rd of April 2010 11:29:50 AM
Old 04-23-2010
A quick observation - neither of these solutions work for non-trivial floating point numbers, because the order of the most significant digit is the reverse on the right of the decimal point as compared to the left.

So, while 1034 < 10034 is true; 0.1034 < 0.10034 isn't.

An example is below:

Code:
$
$
$ cat f0
1
2.0
2.01
3.1
5.10034
5.5
7
5.10
5.1034
5.9
$
$ sort -t"." -k1,1n -k2,2n f0
1
2.0
2.01
3.1
5.5
5.9
5.10
5.1034
5.10034
7
$
$

Note that the floating point numbers in red are not in ascending order.

I am sure will be something for this in the shell itself, but here's a simple Perl solution:

Code:
$
$ cat f0
1
2.0
2.01
3.1
5.10034
5.5
7
5.10
5.1034
5.9
$
$ perl -lne 'chomp; push @x, $_; END {print foreach sort @x}' f0
1
2.0
2.01
3.1
5.10
5.10034
5.1034
5.5
5.9
7
$
$

tyler_durden
 

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mencal(1)								 1								 mencal(1)

NAME
mencal - menstruation calendar SYNOPSIS
mencal [options] [file1 file2 ... -c CONF1 -c CONF2 ...] DESCRIPTION
Display options: -m, --monday draw monday as first weekday (sunday is default) -1 current month (default) -3 previous, current and next month -y [YYYY] all-year calendar (default YYYY is current year) -q, --quiet no top information will be printed -n, --nocolor noncolored output -i, --icolor COLOR intersection color (default red) available colors: red, green, blue, yellow, violet, cyan, shiny, bold mencal configuration: -c, --config s=[YYYY]MMDD,l=LL,d=DD,n=NAME,f=FILE,c=COLOR The second argument is a comma separated list of options. No spaces are allowed in this list. If no name is specified, 'Unknown' is used. Various -c options or filenames can be set. s,start=[YYYY]MMDD start day of period (default current day) l,length=LL length of period in days (default 28) d,duration=D duration of menstruation in days (default 4) n,name=NAME name of subject f,file=FILE filename to save configuration to (see section FILES) only menstruation related variables will be saved c,color=COLOR color used for menstruation days available colors: red, green, blue, yellow, violet, cyan, shiny, bold default color is red, with '-n' switch color settings are ignored Info options: -h, --help print help -V, --version print version information FILES
: $HOME/.mencalrc - the default configuration file that is automatically loaded AUTHOR
: (C) 2002 C. McCohy e-mail: <mccohy@kyberdigi.cz> Word-Wide-Web: http://www.kyberdigi.cz/projects/mencal/english This manual page was written for the Debian GNU/Linux distribution because the original program does not have a manual page (but may be used by others). HISTORY
22 March 2002 - Originally written by Amaya Rodrigo <amaya@debian.org>. 24 Apr 2002 - New manpage contributed by Pablo S. Torralba <psanchez@skyrealms.org>. Amaya Rodrigo <amaya@debian.org> is now responsible for developing and maintaining this manual page. Comments and suggestions are greatly wellcome. mencal Menstruation calendar mencal(1)
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