If you just specify a variable inside an awk function, it becomes a global variable.
In awk you can make the variable "k" local to the function by putting it in the function header. The convention (for readability of your code) is to use a TAB character or extra spaces between the parameters and the local variables. You then call the function using only the parameter before the TAB, like so:
You then call the function like this:
then the cad variable is local, call by value and the k variable is not called and is just local to the function..
I have encountered a very weird behavior of a global variable in Korn Shell in AIX:
A function f1 in my script pipes the output of the function f2 to a program.
A variable defined as global using typeset gets its value in f2.
That value is not seen in f1. If I remove the pipe ksh recognizes the... (2 Replies)
hi,
i need to add a new local variable to my script.
then i want to display its value along the title(with echo).
desired result:
password = x
Actual result:
x
for some reason the below line displays the x value.
password=cat config.xml |grep 'DB Password'|cut -f3 -d '='|cut -f2 -d... (1 Reply)
Im trying to parse ifconfig with awk and setup a bunch of variables in one shot. But Im having trouble figuring out how to work with data in previous lines.
ifconfig output:
eth0 Link encap:Ethernet HWaddr 00:50:DA:10:7F:1B
inet addr:10.10.10.10 Bcast:10.10.10.127 ... (0 Replies)
Hi,
I'm writing a korn shell script where the user enters a variable and I have to create a directory remotely which contains the name of that variable.
Example.
print 'Please enter variable:'
read variable
ssh user@host 'mkdir before_$variable;'
Thank you. (4 Replies)
Hi,
Would like to know the purpose and accessing of local variable as in below code snippet:
a=123
( a=321; )
echo "a = $a" #This will print 123
How to access local a variable which is assigned with value 321 ?. .. (3 Replies)
I've been working on improving my awk, and the next thing I want to learn is to properly use functions (I understand functions in shell and python). I have the following code which includes how I did this without functions before, and two attempts I've made to do it with functions:
function... (3 Replies)
Hi,
gtkdialog gui seperate buttons use seperate functions in their GUI. A variable (newFolderName) is being set in one function (funcA) and it needs to be called in another function (funcB). I thought using global variable (like in python) concept should work however it does not.
... (4 Replies)
I have a question on how can I assign a output of a function to a variable which is executed in background.
Here is my example
$ cat sample_program.sh
#!/bin/ksh
exec_func () {
sleep 1
v=`expr $1 + 100`
print $v
}
export OUT_ARR
date
for i in 1 2
do
OUT_ARR=`exec_func $i` &... (1 Reply)
I have a functions file containing functions:
file.functions:
myTest () {
echo "MYPWD=$(echo $(pwd))"
echo "MYLOGNAME=${LOGNAME}"
}
myCar () {
echo "MYDATE=$(date)"
echo "MYUPTIME=$(uptime)"
}
i know i can source this file in another script using something similar to this:
source... (8 Replies)
so i found a way to do this.
#!/bin/bash
MYF=$(/home/jason/myfunctions)
source <(printf '%s\n' "${MYF}")
echo "${var1}"
/home/jason/myfunctions is a script that outputs information..i.e. functions...etc that needs to be sourced. I have no control over /home/jason/myfunctions. i can... (3 Replies)
Discussion started by: SkySmart
3 Replies
LEARN ABOUT OPENSOLARIS
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).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWgawk |
+--------------------+-----------------+
|Interface Stability | Volatile |
+--------------------+-----------------+
NOTES
Source for gawk is available on http://opensolaris.org.
Free Software Foundation Nov 3 1999 IGAWK(1)