1. Prompts the user for a number.
2. Prompts the user for an operation (add, subtract, divide or multiply)
3. Prompts the user for a number.
4. Prompts the user for another operation (same as above) OR the option to get the result for the equation.
5. The script should loop back if the user chooses to add another operation, and ask for another number (repeat until result)
Now, i already have the arithmetic sorted, and i know i have to add an UNTIL loop, but i'm not very good with loops as i find them hard to understand.
Here is a copy of my code so far:
-----
Code:
echo "please enter a number"
read n1
echo "please choose an operation"
echo "1. add"
echo "2. subtract"
echo "3. divide"
echo "4. multiply"
read opr
echo "please enter a number again"
read n2
if [ $opr = "1" ]
then
echo $((n1+n2))
elif [ $opr = "2" ]
then
echo $((n1-n2))
elif [ $opr = "3" ]
then
echo $((n1/n2))
elif [ $opr = "4" ]
then
echo $((n1*n2))
fi
exit 0
-----
Can anyone give me any pointers? I really have tried to look for solutions but this is my last hope. ANTHING WILL HELP. THanks
Moderator's Comments:
How to use code tags when posting data and code samples.
Last edited by Franklin52; 12-19-2011 at 12:56 PM..
Reason: Please use code tags for data and code samples, thank you
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LEARN ABOUT MOJAVE
newkey
newkey(1M) System Administration Commands newkey(1M)NAME
newkey - create a new Diffie-Hellman key pair in the publickey database
SYNOPSIS
newkey -h hostname [-s nisplus | nis | files | ldap]
newkey -u username [-s nisplus | nis | files | ldap]
DESCRIPTION
newkey establishes new public keys for users and machines on the network. These keys are needed when using secure RPC or secure NFS ser-
vice.
newkey prompts for a password for the given username or hostname and then creates a new public/secret Diffie-Hellman 192 bit key pair for
the user or host. The secret key is encrypted with the given password. The key pair can be stored in the /etc/publickey file, the NIS pub-
lickey map, or the NIS+ cred.org_dir table.
newkey consults the publickey entry in the name service switch configuration file (see nsswitch.conf(4)) to determine which naming service
is used to store the secure RPC keys. If the publickey entry specifies a unique name service, newkey will add the key in the specified name
service. However, if there are multiple name services listed, newkey cannot decide which source to update and will display an error mes-
sage. The user is required to specify the source explicitly with the -s option.
In the case of NIS, newkey should be run by the superuser on the master NIS server for that domain. In the case of NIS+, newkey should be
run by the superuser on a machine which has permission to update the cred.org_dir table of the new user/host domain.
In the case of NIS+, nisaddcred(1M) should be used to add new keys. newkey cannot be used to create keys other than 192-bit Diffie-Hellman.
In the case of LDAP, newkey should be run by the superuser on a machine that also recognizes the directory manager's bind distinguished
name (DN) and password to perform an LDAP update for the host.
OPTIONS -h hostname Create a new public/secret key pair for the privileged user at the given hostname. Prompts for a password for the given
hostname.
-u username Create a new public/secret key pair for the given username. Prompts for a password for the given username.
-s nisplus Update the database in the specified source: nisplus (for NIS+), nis (for NIS), files, or ldap (LDAP). Other sources may be
-s nis available in the future.
-s files
-s ldap
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO chkey(1), keylogin(1), nisaddcred(1M), nisclient(1M), nsswitch.conf(4), publickey(4), attributes(5)NOTES
NIS+ might not be supported in future releases of the SolarisTM Operating Environment. Tools to aid the migration from NIS+ to LDAP are
available in the Solaris 9 operating environment. For more information, visit http://www.sun.com/directory/nisplus/transition.html.
SunOS 5.10 13 Nov 2003 newkey(1M)
12-19-2011
