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Full Discussion: Command to calculate space for all subdirs under a dir
Homework and Emergencies Emergency UNIX and Linux Support Command to calculate space for all subdirs under a dir Post 302597643 by Shirishlnx on Saturday 11th of February 2012 05:33:07 AM
Old 02-11-2012
Intresting... have tested the behaviour in different scenarios and I can say # du is best and more accurate as compare to any ...

Here's for ur ref ..
####################### First Flushed catched ..
Code:
 [root@SKS Shirish]# sh -c sync; echo 3 > /proc/sys/vm/drop_caches; time  du -sb /var
195404352       /var
real    0m2.597s
user    0m0.244s
sys     0m0.468s
[root@SKS Shirish]# sh -c sync; echo 3 > /proc/sys/vm/drop_caches; time  perl  size.pl
Total Size in Byte:  194019894 `in 4686 files
real    0m3.399s
user    0m0.420s
sys     0m0.528s
[root@SKS Shirish]#

size.pl
Code:
 
[root@SKS Shirish]# cat size.pl
#!/usr/bin.perl -w
use strict;
use File::Find;
my $byte_total;
my $file_total;
find (\&sum_bytes, "/var");
sub sum_bytes
{
 return() unless (-f $File::Find::name);
 $byte_total += -s _; 
 $file_total++;
}
print "Total Size in Byte:  $byte_total `in $file_total files\n";

 

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LEARN ABOUT V7

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
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