I agree with Corona688 that awk isn't needed for this job. But, if you're just having trouble understanding how to use the various quotes, this is one way to use one invocation of awk to do the job:
Last edited by Don Cragun; 09-20-2012 at 09:53 PM..
Reason: I missed the fact that FS changed between the 2nd and 3rd calls to awk.
I'm trying to write a ksh script that uses awk, but I want to pass variables to awk. For example (not working):
if ];then
searchstr=$1
lsof -i | awk '{if($9~/SEARCHSTR/) print $2} SEARCHSTR=$searchstr'
else
echo "usage: $0 <search string>"
fi
I tried several options. Is it... (3 Replies)
If have
var='$variable'
how can I expand $variable.
I have tried many thing like duble quotes/braces etc, but nothing worked.
I need the solution ASAP. (2 Replies)
hi everybody!
i am running this ksh script for replacing a set of strings by another set of new ones. i am getting both these from a file.
also, the strings that i want to replace, are sub-strings(can occur more than once in each chunk) in a big chunk of data that i have bulk-copied(bcp utility)... (1 Reply)
Hi,
The following code finds the line containing fruits in test.txt and replaces instances of apple with banana.
ed -s test.txt <<< $'/fruits/s/apple/banana/g\nw'
What I want to do is put variables in the place of fruits, apple and banana.
I have tried replacing ' with " to get... (2 Replies)
Hi There,
I am writing a ksh script which assigns variable values from file "A" and passes that variables to file "B". While passing the parameters an additional "$" sign is being assigned to awk -v option.
Could any one help me with this please.
#!/bin/ksh
head -1... (3 Replies)
can someone please explain to me what i'm doing wrong with this code:
WELT=$(awk '(($1 ~ "^${caag}$") || ($2 ~ "^${caag}$"))' /tmp/Compare.TEXT)
when run from the command line, it works. but it seems to be having a problem doing the comparison when variables are involved.
i tested from... (1 Reply)
Using ksh to call a function which has awk script embedded.
It parses a long two element list file, filled with text numbers (I want column 2, beginning no sooner than line 45, that's the only known thing) . It's unknown where to start or end the data collection, dynamic variables will be used. ... (1 Reply)
Greetings all,
Disclaimer: I'm a novice and always welcome best practices as I'm learning.
File example:
100,1.1.1.1,1.1.1.2,10.10.10.1,172.16.1.10,172.16.1.20
101,1.1.2.1,1.1.2.2,10.10.20.1,172.16.2.10,172.16.2.20
102,1.1.3.1,1.1.3.2,10.10.30.1,172.16.3.10,172.16.3.20
...and so on
... (3 Replies)
My OS is Linux (kernel 4.08.something) and AIX (7100-04-01-1543), the used ksh versions are:
ksh88: Version M-11/16/88f (AIX)
ksh93: Version M 93t+ 2009-05-01 (AIX), Version M 93u (Linux)
When writing a parser for stanza files in ksh i encountered a rather strange behavior. Here is a... (4 Replies)
Hi Guys,
I wrote a collection of bash functions years ago and now need to use them again but
I'm getting some error messages when eval tries to expand the variables names.
I recollect that I used the shopt command to set one of the options but I can't quite
remember the command that I... (8 Replies)
Discussion started by: ASGR
8 Replies
LEARN ABOUT REDHAT
igawk
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)