How to use for/while loop with multiple variables?
Hi,
I have two variables like below which will always be of the same size
a=1:2:3
b=A:B:C
I need to use a for/while loop that will have both the variables available. I cannot use an array here and will probably might iterate through the variable as echo $a | tr ':' '\n' and thus iterate through the variables one by one. I am doing the below
But I want to traverse both the lists at the same time. So for eg if I have the first element in list 1, I should also have the first element in list 2. I could have done this with a count variable, but wanted to see if there is another easy way
I have a script which selects two 'sets' of system LVM device files from a tabular file 'mapfile' using awk :
LIVELV=`awk '{print($1)}' mapfile`
BCVLV=`awk '{print($3)}' mapfile`
I wanted to pass these 'sets' into an LVM command 'loop' along the lines of :
lvmerge $BCVLV $LIVELV
ie.... (3 Replies)
Hi ,
I am trying to write a script in kshell with while loop ,its like
count=1
count_cmp=1
while ; do
tail -$count tempfile | head -1 > tempstring
.......
done
However i get CIF.sh: line 33: '
I have checked thetrailing spaces , not sure what is... (4 Replies)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Hi,
I need to pass the multiple values of src1 to another variable. I managed to print it but not sure how to assign it to a variable in a loop.
src1=01,02,03
echo $src1|awk 'BEGIN {FS=","} {for(i=1;i<=NF;i++) print $i}'
I need to pass the value as
src2=01
src2=02
src2=03
Thanks... (4 Replies)
Hi,
I managed to read and print variable as shown in the below code.
table_name=table1,table2,table3
i=0
IFS=","
for i in $table_name
do
echo $i
done
Is there a way how I can read more than one variable. For example I need to read 2 variables and populate the output... (6 Replies)
hi,
i need a portion in a audit logging shell script where i have to loop thru multiple variables.
I need some help in accomplishing this. i have 3 variables
var1=1,23,234
var2=a,ab,xyz
var3=0,0,0
the variables will have variables number of values but same length.(3 in this case )
i... (10 Replies)
Hi
My goal is to fill an HTML form and submit.
What I have managed to do:
1. curl command to fill up the form and submit
2. a file which has the input
curl command:
curl -v -b cookie.txt -d __CSRFToken__=dc23d5da47953b3b390ec68d972af10380908b14 -d do=create -d a=open -d... (10 Replies)
Hi!
I've run into a problem where my variables are displayed in the wrong order. Basically I'm supposed to use a file that has information like this username:firstname:lastname:etc:etc.
What I'm interested in doing is reformating it into a something more like this: username lastname,... (2 Replies)
Discussion started by: reindeermountai
2 Replies
LEARN ABOUT PHP
_env
_ENV(3) 1 _ENV(3)
$_ENV - Environment variables
An associative array of variables passed to the current script via the environment method.
These variables are imported into PHP's global namespace from the environment under which the PHP parser is running. Many are provided by
the shell under which PHP is running and different systems are likely running different kinds of shells, a definitive list is impossible.
Please see your shell's documentation for a list of defined environment variables.
Other environment variables include the CGI variables, placed there regardless of whether PHP is running as a server module or CGI proces-
sor.
$HTTP_ENV_VARS contains the same initial information, but is not a superglobal. (Note that $HTTP_ENV_VARS and $_ENV are different variables
and that PHP handles them as such)
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 4.1.0 | |
| | |
| | Introduced $_ENV that deprecated $HTTP_ENV_VARS. |
| | |
+--------+---------------------------------------------------+
Example #1
$_ENV example
<?php
echo 'My username is ' .$_ENV["USER"] . '!';
?>
Assuming "bjori" executes this script
The above example will output something similar to:
My username is bjori!
Note
This is a 'superglobal', or automatic global, variable. This simply means that it is available in all scopes throughout a script.
There is no need to do global $variable; to access it within functions or methods.
getenv(3), The filter extension.
PHP Documentation Group _ENV(3)