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I'm trying to establish an SSH connection and see if a directory exist, and if that directory exists I want to run commands on the local machine that made the SSH call.
Here is what I've attempted:
if [ ssh -t username@ssh_server -d /directory ] then { commands.... } fi Is something like this possible?
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Checking If a Directory Exists In a Bash Shell Script-h "/path/to/dir" ] && echo "Directory /path/to/dir exists." || echo "Error: Directory /path/to/dir exists but point to $(readlink -f /path/to/dir)." The cmd2 is executed if, and only if, cmd1 returns a non-zero exit status.
In order to check if a file exists in Bash using shorter forms, specify the “-f” option in brackets and append the command that you want to run if it succeeds. [[ -f <file> ]] && echo "This file exists!" [ -f <file> ] && echo "This file exists!" [[ -f /etc/passwd ]] && echo "This file exists!"
SSH provides two different commands, which can be used to accomplish this. In order to search for a file location, you can use the find command. Find is a very powerful tool and accepts various arguments allowing you to specify the exact search term (i.e search by name, by type or even by modified time).
You are very close:
Change if statement to
if ssh username@ssh_server '[ -d /directory ]' I am assuming that you have setup key-based authentication.
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