Create users remotely

Shell Programming and Scripting
1

Hello Forum,

I just wrote a bash script to create users remotely from a file.

When I run the script localy, it work nice.
But when I run it using rsh it stops.

My script is:

#!/bin/bash
1|cat /root/usuarios.txt | while read line; do
2|       /usr/sbin/adduser $line
3|       echo $line"123" | passwd --stdin "$line"
4|       echo; echo "User $line's password changed!!"
5|done

1, read a file | and while read each line do
2, run adduser command for each $line variable content
3, run echo for the content of $Line variable + 123 and sent it to standar input of passwd command when ask for the username ($Line variable content)
4, and finally show a Message, "User's password changed"

If I run localy it works perfect.
When I put it together with rsh it fails.

#!/bin/bash
clear
. /root/serv.txt               #file with IP Addresses

for ((i=1;i<=2;i+=1));       #I'm testing with only 2 servers  in the serv.txt file
do
        SERVER=`expr ${SERVIDOR[$i]}`
        echo "----------------   $SERVER   -----------------"

                cat /root/usuarios.txt | while read line; do
                        rsh $SERVER '/usr/sbin/useradd -g dbagroup $line'
                        rsh $SERVER 'echo $line"123" | passwd --stdin "$line"'
                done
echo ""
done

I really appreciate your help if you can help me to fix this bad script definition.

2

Check your quotes.

Try this:

Change

rsh $SERVER '/usr/sbin/useradd -g dbagroup $line'
rsh $SERVER 'echo $line"123" | passwd --stdin "$line"'

to

rsh $SERVER "/usr/sbin/useradd -g dbagroup $line"
rsh $SERVER "echo ${line}123 | passwd --stdin $line"
3

You could also try

rsh $SERVER "/usr/sbin/useradd -g dbagroup -p $(openssl passwd ${line}123) $line"
4

Hello
Chubler_XL and DexDex200

I really appreciate your help,
well after modify my script with the suggestions you made I get this:

#!/bin/bash
clear
./root/SCRIPTS/Hosts/serv.txt

for ((i=1;i<=2;i+=1));
do
SERVER=`expr ${SERVIDOR[$i]}`
echo "---------------- $SERVER -----------------"

cat /root/SCRIPTS/Usuarios/lista.txt | while read line; do
        rsh $SERVER "/usr/sbin/useradd -g dbagroup -p $(openssl passwd ${line}123) $line"
        done
        echo ""
done

I get this message....

./remote.sh
./remote.sh: line 3: ./root/SCRIPTS/Hosts/serv.txt: No such file or directory
expr: missing operand
Try `expr --help' for more information.
----------------  -----------------
Warning: truncating password to 8 characters
/usr/sbin/useradd -g dbagroup -p l3m3VOfa.mz4w eduardomejia: host unknown
Trying krb4 rlogin...
/usr/sbin/useradd -g dbagroup -p l3m3VOfa.mz4w eduardomejia: host unknown
trying normal rlogin (/usr/bin/rlogin)
/usr/sbin/useradd -g dbagroup -p l3m3VOfa.mz4w eduardomejia: Unknown host
/usr/sbin/useradd -g dbagroup -p Ravebxl8fb.oc yayo: host unknown
Trying krb4 rlogin...
/usr/sbin/useradd -g dbagroup -p Ravebxl8fb.oc yayo: host unknown
trying normal rlogin (/usr/bin/rlogin)
/usr/sbin/useradd -g dbagroup -p Ravebxl8fb.oc yayo: Unknown host

expr: missing operand
Try `expr --help' for more information.
----------------  -----------------
Warning: truncating password to 8 characters

Best Regards.

6

Did you look at the error message? It cannot find ./root/SCRIPTS/Hosts/serv.txt . So that file does not get loaded,
There should be a space between . and /root