Can someone please help me figure out what is wrong here, my script does not move on to the "else" part even though there is no .ssh directory on my remote server:
$more putkey.sh
#!/bin/ksh for server in `cat list`
do
if [ -d /.ssh ]; then
cat $HOME/.ssh/id_rsa.pub |ssh $server ' cat >> .ssh/authorized_keys && echo "key copied"'
else
cat $HOME/.ssh/id_rsa.pub |ssh $server ' mkdir .ssh && cat >> .ssh/authorized_keys && echo "key copied"'
fi
done
$./putkey.sh
Password:
sh: .ssh/authorized_keys: cannot create
The script works if the else part is executed:
$cat $HOME/.ssh/id_rsa.pub |ssh myserver ' mkdir .ssh && cat >> .ssh/authorized_keys && echo "key copied"'
Password:
key copied
I made a script a while back that does almost the same thing, but the usage is a little different,
"./ssh-putkey.sh -H server" is the most basic usage, but if you do a "-h", it will show you the complete usage.
I'm not real sure if Ksh has the getopts built-in for parsing command line options, as i wrote this for bash, but it should work.
Code:
#!/bin/bash
### defaults
ID_FILE="$HOME/.ssh/id_dsa"
username=$USER
rsa_or_dsa="dsa"
usage_line="$0 -H <host>\nOptions:\n\t-?|-h Display this Output\n\t-l <user>; Default == current user\n\t-f <identity file>; Default == '~/.ssh/id_dsa'\n\t-t <rsa|dsa> ***Only when generating new file; Default == $rsa_or_dsa"
### Start function
USAGE() {
clear
echo -e "Usage: $usage_line"
echo -e "\nIf you use the '-f' option,\n it will generate the file if it doesn't exist."
echo -e "\nYou will have to enter the remote password once,\n ...but never again after that.\n"
exit 2
}
### End Function
### if no args, complain
[ "$#" -lt "1" ] && USAGE
### set command line options
while getopts ":f:t:H:l:?h" flag; do
case $flag in
f ) ID_FILE=$OPTARG ;;
t ) rsa_or_dsa=$OPTARG ;;
H ) remote_host=$OPTARG ;;
l ) username=$OPTARG ;;
?|h ) USAGE ;;
esac
done
### make sure options are set correctly, or complain
if [ -z $remote_host ]; then
clear
echo -e "\nYou need to specify a valid hostname or ip-address,\nof the remote host you want to connect to.\n"
USAGE
exit 1
elif [ $rsa_or_dsa != "rsa" -a $rsa_or_dsa != "dsa" ]; then
clear
echo -e "\nWhoa....the '-t' needs to be either 'rsa', or 'dsa'....not '$rsa_or_dsa', as you put it.\n\n"
exit 1
fi
### make key files if not already there
[ -e "$ID_FILE" ] || ssh-keygen -t $rsa_or_dsa -f $ID_FILE || exit 1
### read pub file, and complain if it cant be read
pub_key=`cat $ID_FILE.pub`
[ -z "$pub_key" ] && (clear ; echo -e "$ID_FILE.pub could not be read...exiting.\n") && exit 1
### Start Function
SSH_PUT_KEY() {
ssh $username@$remote_host "[ ! -d \$HOME/.ssh/ ] && mkdir \$HOME/.ssh/ ; echo $pub_key >> \$HOME/.ssh/authorized_keys"
}
### End Function
### run function
SSH_PUT_KEY
It may look kinda big, and unfriendly, but it has never failed me, and it is very easy to use
, and it is commented so it shouldn't be that hard to modify it to suit your exact needs.
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----------------------------------
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