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How to auto pass password in shell script !

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# 1  
Old 09-26-2012
Question How to auto pass password in shell script !
Hi all,

I have a simple script to check the CPU, Swap Memory and Hard Disk. But I can auto assign password in the script to automatic run it in crontab.

Quote:
#! /bin/bash

# Total memory space details

echo "Memory Space Details"
free -t -m | grep "Total" | awk '{ print "Total Memory space : "$2 " MB";}'
free -t -m | grep "Total" | awk '{ print "Memory Usage space : "$3 " MB";}'
total_mem=$(free -t -m | grep "Total" | awk '{ print $2 }')
mem_used=$(free -t -m | grep "Total" | awk '{ print $3 }')
percent1=$((($mem_used*100)/$total_mem))

echo "Memory Usage : $percent1%"


free -t -m | grep "Swap" | awk '{ print "Total Swap space : "$2 " MB";
print "Used Swap Space : "$3" MB";
print "Free Swap : "$4" MB";
}'
Everytime when I run this script, it require to insert password like the message below :

Quote:
test:~ # ssh root@192.168.1.1 'bash -s' < /home/scripts/memLinux.sh
root@192.168.1.1's password: xxxx
Memory Space Details
Total Memory space : 65207 MB
Memory Usage space : 31438 MB
Memory Usage : 48%
Total Swap space : 32773 MB
Used Swap Space : 2161 MB
Free Swap : 30611 MB
How can I solve this problem ?
Last edited by cafecoc85; 09-26-2012 at 04:47 AM.. Reason: Modify the quote
# 2  
Old 09-26-2012
It's not the script, it's ssh asking for a password.

Search "ssh without password" in Google to properly configure ssh client and server.

However IMHO ssh-ing as root is truly bad. IMHO you should ssh as normal user (and without password), and then, once logged in the remote system, become root - yes, inserting the root password - if you need it.

BTW: in most systems your script commands don't need root privileges.
--
Bye
# 3  
Old 09-26-2012
Quote:
Originally Posted by Lem
It's not the script, it's ssh asking for a password.

Search "ssh without password" in Google to properly configure ssh client and server.

However IMHO ssh-ing as root is truly bad. IMHO you should ssh as normal user (and without password), and then, once logged in the remote system, become root - yes, inserting the root password - if you need it.

BTW: in most systems your script commands don't need root privileges.
--
Bye
Thank you for mention me about not using root user to execute this script. It just test script, so I don't care too much about it. I will google it !
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