I need to create a new user account with password in more than 200 systems. What will be the easiest way? Is it possible to do this task via bash script or perl script?
Generate the password with perl perl -e 'print crypt("passwd", "passwd");'.
Then just use a bash script to call useradd via ssh on each server (assuming you already setup ssh keys for password-less login, otherwise this will get old, fast)
pass=$(perl -e 'print crypt("passwd", "passwd");')
for srv in $(cat server.list); do
ssh $srv useradd -m -p "$pass" username
done
and check the manpage for the useradd command 
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