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Full Discussion: help in awk arrays!
Top Forums Shell Programming and Scripting help in awk arrays! Post 302558653 by ctsgnb on Saturday 24th of September 2011 06:33:12 PM
Old 09-24-2011
Quote:
Originally Posted by geli21
---------- Post updated at 08:43 PM ---------- Previous update was at 08:34 PM ----------

I have one question. How does it know that the code below is now for second file?
Code:
 
{for(k=0;++k<=NF;)

and can we deal with more than two files with awk?
1) This is because of the instruction "next", next skip any further code and reprocess next line from the beginning of awk commands

2) yes, awk can deal with more than 2 files, consider the following code :

Code:
$ cat f3
line1
line2
line3
line4
line5

Code:
$ nawk '{print NR,FNR,FILENAME,$0}' f3 f1 f2 f3 f2
1 1 f3 line1
2 2 f3 line2
3 3 f3 line3
4 4 f3 line4
5 5 f3 line5
6 1 f1 Id1 pp1 0t4 pp8 xy2
7 2 f1 Id43 009y black
8 3 f1 Id6 red xy2
9 4 f1 Id12 new pp1 black
10 1 f2 Id pp1 black new pp8
11 1 f3 line1
12 2 f3 line2
13 3 f3 line3
14 4 f3 line4
15 5 f3 line5
16 1 f2 Id pp1 black new pp8

Last edited by ctsgnb; 09-24-2011 at 07:59 PM..
 

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LEARN ABOUT NETBSD

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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