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Top Forums Shell Programming and Scripting Insert external variable in a AWK pattern Post 302370976 by antuan on Friday 13th of November 2009 04:13:30 AM
Old 11-13-2009
CPU & Memory Insert external variable in a AWK pattern

Dear all,

¿How can i insert a variable in a AWK pattern?

I have almost succeeded in solving a puzzle with AWK but now i want to make a script. Let me explain.
Code:
cat file.txt | awk 'BEGIN {RS="\\n\\n"} /tux/  { print "\n"$0 }'

I know that this command makes right what i want to do, but mi intention is make a generic script whit a input parameter instead of 'tux' constant. Can you help me please?

Thanks

Last edited by radoulov; 11-13-2009 at 06:09 AM.. Reason: Added code tags.
 

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COLORS(3)						   libbash colors Library Manual						 COLORS(3)

NAME
colors -- libbash library for setting tty colors. SYNOPSIS
colorSet <color> colorReset colorPrint [<indent>] <color> <text> colorPrintN [<indent>] <color> <text> DESCRIPTION
General colors is a collection of functions that make it very easy to put colored text on tty. The function list: colorSet Sets the color of the prints to the tty to COLOR colorReset Resets current tty color back to normal colorPrint Prints TEXT in the color COLOR indented by INDENT (without adding a newline) colorPrintN The same as colorPrint, but trailing newline is added Detailed interface description follows. Available colors: Green Red Yellow White The color parameter is non-case-sensitive (i.e. RED, red, ReD, and all the other forms are valid and are the same as Red). FUNCTIONS DESCRIPTIONS
colorSet <color> Sets the current printing color to color. colorReset Resets current tty color back to normal. colorPrint [<indent>] <color> Prints text using the color color indented by indent (without adding a newline). Parameters: <indent> The column to move to before start printing. This parameter is optional. If ommitted - start output from current cursor position. <color> The color to use. <color> The text to print. colorPrintN [<indent>] <color> The same as colorPrint, except a trailing newline is added. EXAMPLES
Printing a green 'Hello World' with a newline: Using colorSet: $ colorSet green $ echo 'Hello World' $ colorReset Using colorPrint: $ colorPrint 'Hello World'; echo Using colorPrintN: $ colorPrintN 'Hello World' AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <gil@ran4.net> SEE ALSO
ldbash(1), libbash(1) Linux Epoch Linux
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