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Full Discussion: file content as a part of an if-statement
Top Forums Shell Programming and Scripting file content as a part of an if-statement Post 302489313 by Dr_Aleman on Thursday 20th of January 2011 07:18:14 AM
Old 01-20-2011
file content as a part of an if-statement
Hello,
I have following problem.
I have the result of a database request. I preparated the result via sed, etc. as a string in a file.
The string in the file is:
($3==1 || $3==2 || $3==3 || $3==4)
Now I want to use the String as a command in an if-statement.
So I assigned the string to a variable:
ABC=$(<dir/file)

So far - so good:
echo $ABC gives me as a result: ($3==1 || $3==2 || $3==3 || $3==4)

But with nawk it doesn't work.

For clarification: If I would use the string directly (and so static), my awk would be written like here:

#If we find the values 1,2,3 or 4 in column 3, so change the value in column 4 into 10 in the relevant rows.
nawk '{FS=";";OFS=";"; if ($3==1 || $3==2 || $3==3|| $3==4) {$5=10}; print $0}' dir/file1.txt > dir/file2.txt

But dynamically it doesn't work. My idea was following:

nawk '{FS=";";OFS=";"; if ($ABC) {$5=10}; print $0}' dir/file1.txt > dir/file2.txt

I tested everything, with echo $ABC, cat, different brackets... but without success.

Is anybody able to help me and explain to me what I have to change, please?

Thanks a lot and Kind Regards
Dr_Aleman
 

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LEARN ABOUT DEBIAN

seqdiag

SEQDIAG(1)						      General Commands Manual							SEQDIAG(1)

NAME

       seqdiag - generate sequence-diagram image file from spec-text file.

SYNOPSIS

       seqdiag [options] file

DESCRIPTION

       This manual page documents briefly the seqdiag commands.

       seqdiag is generate sequence-diagram image file from spec-text file.

OPTIONS

       These  programs	follow	the  usual  GNU  command  line	syntax, with long options starting with two dashes (`-').  A summary of options is
       included below.	For a complete description, see the Info files.

       --version
	      show program's version number and exit

       -h, --help
	      show this help message and exit

       -a, --antialias
	      Pass diagram image to anti-alias filter

       -c FILE, --config=FILE
	      read configurations from FILE

       -o FILE
	      write diagram to FILE

       -f FONT, --font=FONT
	      use FONT to draw diagram

       -T TYPE
	      Output diagram as TYPE format

SEE ALSO


       The programs are documented fully by
       http://tk0miya.bitbucket.org/seqdiag/build/html/index.html

AUTHOR

       seqdiag was written by Takeshi Komiya <i.tkomiya@gmail.com>

       This manual page was written by Kouhei Maeda <mkouhei@palmtb.net>, for the Debian project (and may be used by others).

								   May 21, 2011 							SEQDIAG(1)
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