So I have a list of servers with n length. I need to open a connection and edit a file and close it.
Here's what I currently have:
#!/bin/bash
server_list=(a b c d)
for i in "${server[@]}"; do ssh "${server[@]}"; cd /etc; cp file file.bak; perl -pi -i 's/find/replace/g' file; exit; done
The only issue I have is that I can't exit the ssh connection and move on to the next in the array. I have used the -n, -t and -T options to no avail.
Thanks.
Your current code isn't sending any commands to the ssh sessions. Use a heredoc to pass your commands into ssh:
#!/bin/bash
server_list=(a b c d)
for i in "${server_list[@]}"; do
#
# As per Charles' suggestion - "bash -s" makes sure the commands
# would run with Bash rather than the default shell on the remote
# server.
#
# I have left your commands exactly as in your question.
# They can be written as a single command as per @chepner's recommendation
ssh "$i" bash -s << "EOF"
cd /etc
cp file file.bak
perl -pi -i 's/find/replace/g' file
exit
EOF
done
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