I have never used arrays before but I have a script like this:
These two variables will store a list such as: Var1= 996 host1 665 host2 334 host3
and Var2 =15516 host1 22223 host2 15151 host3. However, I want a list that looks like this:
996 15516 host1
665 22223 host2
334 15151 host3
Would I need to use arrays to get a list like this? If so, what would be a brief example? Any suggestions would be greatly appreciated.
---------- Post updated at 12:34 PM ---------- Previous update was at 12:25 AM ----------
Did anyone have an idea about creating this list? Do you need more information?
Dear all,
How can i unset arrays. I mean all the subscripts including the array after using them.
Could you direct me to some links of array memory handling in the korn shell.
Thanks (2 Replies)
PHP question...
I have an SQL query that's pulled back user IDs as a set of columns. Rather than IDs, I want to use their names.
So I have an array of columns $col with values 1,7,3,12 etc and I've got an array $person with values "Fred", "Bert", "Tom" etc
So what I want to do is display the... (3 Replies)
Hello,
I am some what of a newbie to awk scripting and I seem to be struggling with this problem.
I know I need to use arrays but I can't figure out how to use them.
I have an input file that looks like this;
Name,Team,First Test, Second Test, Third Test
Crystal,Red,5,17,22... (1 Reply)
We have 2 servers (L1000 and rp7410) running 11.11. We would like to hook them up to either a Hitatchi AMS 2500 or Hitachi USPV via fiber channel. I need to what drivers I need for this and if it will work. Oh, they are using HP Tachyon XL2 Fiber Channel Mass Storage Adapters.
Thanks,
Bill (1 Reply)
hi everybody
can anyone help me with usage of 2 dimensional arrays in unix. please provide a suitable example for accessing individual elements as well as all elements.
Thanks (2 Replies)
I have three arrays. One is Master array and that has list of other array in config file.
for e.g (for simplicity I have only defined array with 2 elements each)
set +A MASTERARRAY SQLUPDATE_ONETIME SQLUPDATE_DAILY END_OF_ARRAY
set +A SQLUPDATE_ONETIME update12 update22 END_OF_ARRAY... (4 Replies)
if i declare both but don't input any variables what values will the int array and file pointer array have on default, and if i want to reset any of the elements of both arrays to default, should i just set it to 0 or NULL or what? (1 Reply)
Hi all,
I have a file test1.txt with the below contents
abc
def
ghj
xyz
I tried printing these values using arrays.
Script tried :
===========
set -A array1 `cat test1.txt`
count=${#array1
}
i=0
while
do
echo "element of array $array1"
done (1 Reply)
I've noticed something interesting in C++ programming. I've always done tricky stuff with pointers and references to have functions deal with arrays. Doing exercises again out of a C++ book has shown me an easier way, I didn't even know was there. It's weird to me.
When dealing with arrays, it... (4 Replies)
Am using bash
For eg:
Suppose i have a array
arr=(1 2 3 4 5 6 7 8 9 10 11 12)
suppose i give input 5 to a script and script should able to print values greater than or equal to 5 like below:
Input:
5
output:
5,6,7,8,9,10,11,12 (7 Replies)
Discussion started by: manid
7 Replies
LEARN ABOUT CENTOS
passmass
PASSMASS(1) General Commands Manual PASSMASS(1)NAME
passmass - change password on multiple machines
SYNOPSIS
passmass [ host1 host2 host3 ... ]
INTRODUCTION
Passmass changes a password on multiple machines. If you have accounts on several machines that do not share password databases, Passmass
can help you keep them all in sync. This, in turn, will make it easier to change them more frequently.
When Passmass runs, it asks you for the old and new passwords. (If you are changing root passwords and have equivalencing, the old pass-
word is not used and may be omitted.)
Passmass understands the "usual" conventions. Additional arguments may be used for tuning. They affect all hosts which follow until
another argument overrides it. For example, if you are known as "libes" on host1 and host2, but "don" on host3, you would say:
passmass host1 host2 -user don host3
Arguments are:
-user
User whose password will be changed. By default, the current user is used.
-rlogin
Use rlogin to access host. (default)
-slogin
Use slogin to access host.
-ssh
Use ssh to access host.
-telnet
Use telnet to access host.
-program
Next argument is a program to run to set the password. Default is "passwd". Other common choices are "yppasswd" and "set
passwd" (e.g., VMS hosts). A program name such as "password fred" can be used to create entries for new accounts (when run as
root).
-prompt
Next argument is a prompt suffix pattern. This allows the script to know when the shell is prompting. The default is "# " for
root and "% " for non-root accounts.
-timeout
Next argument is the number of seconds to wait for responses. Default is 30 but some systems can be much slower logging in.
-su
Next argument is 1 or 0. If 1, you are additionally prompted for a root password which is used to su after logging in. root's
password is changed rather than the user's. This is useful for hosts which do not allow root to log in.
HOW TO USE
The best way to run Passmass is to put the command in a one-line shell script or alias. Whenever you get a new account on a new machine,
add the appropriate arguments to the command. Then run it whenever you want to change your passwords on all the hosts.
CAVEATS
Using the same password on multiple hosts carries risks. In particular, if the password can be stolen, then all of your accounts are at
risk. Thus, you should not use Passmass in situations where your password is visible, such as across a network which hackers are known to
eavesdrop.
On the other hand, if you have enough accounts with different passwords, you may end up writing them down somewhere - and that can be a
security problem. Funny story: my college roommate had an 11"x13" piece of paper on which he had listed accounts and passwords all across
the Internet. This was several years worth of careful work and he carried it with him everywhere he went. Well one day, he forgot to
remove it from his jeans, and we found a perfectly blank sheet of paper when we took out the wash the following day!
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
7 October 1993 PASSMASS(1)