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Full Discussion: What is wrong with my code?
Top Forums Shell Programming and Scripting What is wrong with my code? Post 302772502 by Yoda on Monday 25th of February 2013 11:07:50 PM
Old 02-26-2013
Quote:
Originally Posted by littlewenwen
but what my original code output is actually
Code:
3

why is that?
That is because when you used $d you were actually assigning NULL to your array: myarray for 3 consecutive times.

This is the reason why it was printing NULL followed by number of occurrence: 3.
Code:
$ awk 'BEGIN{while("ls"|getline d) {myarray[$d]++}}; END{close("ls");for (i in myarray){print length(i), myarray[i]}}' /dev/null
0 3

This User Gave Thanks to Yoda For This Post:
littlewenwen
 

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LEARN ABOUT DEBIAN

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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