12-04-2007
Quote:
Originally Posted by
ahjiefreak
Hi,
Could you please explain to me what is the context of :-
nawk -v pat='^&*#' -f ah.awk myFile
-v pat='^&*#' - defines an awk variable called 'pat'. I assigned a string '^&*#' to that variable. This variable will contain ALL characters you want to get the frequency stat for.
Quote:
Originally Posted by ahjiefreak
Where do ah.awk comes?
Sorry - I forgot to show this in my post - modified the post now.
'ah.awk' is an awk script from original post - that's the meat of implementation.
Quote:
Originally Posted by ahjiefreak
I assume "myFile" is the existing shell script.
no, 'myFile' is the file you need to parse and find the character frequencies per line.
Quote:
Originally Posted by ahjiefreak
And honeslty the code you shown me just stunned me. Correct me if I am wrong.
Instead commenting on your comments.... I'll document the code in the original post.
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IGAWK(1) Utility Commands IGAWK(1)
NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO
gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)