Hi Guys,
I have a scripts that uses a while loop to read a file and set 2 variables.
How can I do this so the variables can be used outside the while loop ?
Below is an example....# ./junk2 -m -e user
EXE=user master=TRUE
DB_TAG=PRODUCT
In loop MST=MST=testsvr1:3110
In loop ARGS=... (2 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, say I have a simple sh script like this:
for i in a b c d
do
for j in 1 2 3 4
do
echo "$i $j"
done
done
and the output is
a 1
a 2
a 3
a 4
b 1 (20 Replies)
Can we assign two variables in a for loop?
I have an input file:
000301|20100502
835101|20100502
I want to read this file in a for loop and assign values to two different variables.
I did this now but did not work
for STORE,RUNDATE in `awk -F\| '{print $1,$2}' inputfile
... (4 Replies)
Hi,
I need help on for loop need to add domain and IP
In domain list
1.com
2.com
3.com
In Ip list
1.1.0.1
1.2.0.1
1.3.0.1
1.com 1.1.0.1
2.com 1.2.0.1
3.com 1.3.0.1
I need to excute this command (4 Replies)
Greetings. I'm completely new to shell scripting and quickly trying to catch on. Here's my scenario:
I have a text file, named ip.txt, containing IP addresses. I want to automatically perform a whois query on each address in the file, search the output for the country, and then put both the IP... (4 Replies)
i am having a file contants as below
my requirement is
for file in `awk -F "," '{print $8,$9}'` <temp.txt
echo "$file"
echo "$file">test.txt
a=`awk -F "," '{print $1}' `<test.txt
b=`awk -F "," '{print $2}' `<test.txt
but script reads , i want both the vales for further... (5 Replies)
Hi,
I have a out from a command i need to grep a report. For that i need loop 3 variable for that. How i can loop need help.
Symmetrix ID : 123456
Masking View Name : Host16
Last updated at : 04:13:06 PM on Thu Mar 17,2011
Initiator Group Name : Host16
Host... (3 Replies)
I am pretty new to Unix. Trying to pick up some slack while a coworker is out on vacation.
Basically the script is working fine however when I go through the testing phase and have to make mods it is a pita.
Here is an example of what I have
#!/bin/ksh
if
then
echo... (8 Replies)
Hello, please assist:
users="test1 test2"
keytest1="abcd"
keytest2="dbcd"
for i in $users
do
echo "$key${i}" > fileout
done
So, my objective is to take the current user (ie test1) in loop and echo its associated keyname (ie keytest1) variable to a file.
The echo... (2 Replies)
Discussion started by: motdman
2 Replies
LEARN ABOUT CENTOS
foreach
foreach(n) Tcl Built-In Commands foreach(n)
__________________________________________________________________________________________________________________________________________________NAME
foreach - Iterate over all elements in one or more lists
SYNOPSIS
foreach varname list body
foreach varlist1 list1 ?varlist2 list2 ...? body
_________________________________________________________________DESCRIPTION
The foreach command implements a loop where the loop variable(s) take on values from one or more lists. In the simplest case there is one
loop variable, varname, and one list, list, that is a list of values to assign to varname. The body argument is a Tcl script. For each
element of list (in order from first to last), foreach assigns the contents of the element to varname as if the lindex command had been
used to extract the element, then calls the Tcl interpreter to execute body.
In the general case there can be more than one value list (e.g., list1 and list2), and each value list can be associated with a list of
loop variables (e.g., varlist1 and varlist2). During each iteration of the loop the variables of each varlist are assigned consecutive
values from the corresponding list. Values in each list are used in order from first to last, and each value is used exactly once. The
total number of loop iterations is large enough to use up all the values from all the value lists. If a value list does not contain enough
elements for each of its loop variables in each iteration, empty values are used for the missing elements.
The break and continue statements may be invoked inside body, with the same effect as in the for command. Foreach returns an empty string.
EXAMPLES
This loop prints every value in a list together with the square and cube of the value:
set values {1 3 5 7 2 4 6 8} ;# Odd numbers first, for fun!
puts "Value Square Cube" ;# Neat-looking header
foreach x $values { ;# Now loop and print...
puts " $x [expr {$x**2}] [expr {$x**3}]"
}
The following loop uses i and j as loop variables to iterate over pairs of elements of a single list.
set x {}
foreach {i j} {a b c d e f} {
lappend x $j $i
}
# The value of x is "b a d c f e"
# There are 3 iterations of the loop.
The next loop uses i and j to iterate over two lists in parallel.
set x {}
foreach i {a b c} j {d e f g} {
lappend x $i $j
}
# The value of x is "a d b e c f {} g"
# There are 4 iterations of the loop.
The two forms are combined in the following example.
set x {}
foreach i {a b c} {j k} {d e f g} {
lappend x $i $j $k
}
# The value of x is "a d e b f g c {} {}"
# There are 3 iterations of the loop.
SEE ALSO
for(n), while(n), break(n), continue(n)
KEYWORDS
foreach, iteration, list, looping
Tcl foreach(n)