一些命令无法通过ssh（shell）在远程服务器上运行

Question

I have to run some userdefined commands on remote servers. So I do the following. It works for many commands such as crontab -l , ls , date +%s , etc... However, it doesn't work for ip addr

When I actually ssh INSIDE those server ip addr works fine. But when I execute it using ssh it doesnt.

This is how I execute it.

$ sshpass -p myPassword ssh -q root@127.0.0.1 'ip addr' > $PWD/tmp
$ cat $PWD/tmp

Again, this works for any commands I've tried so far except ip addr . For ip addr it gives the following output

bash: ip: command not found

So i was wondering why and if there's anything wrong I'm doing....

Also, please don't sugges to use rsync or any other nondefault linux command since the environment I work in does not have them nor do I have the permission to install.

Thank you in advance

Answer 1

This is caused because a non-interactive ssh session does not source your login profile, which amongst other things is setting your PATH variable.

The default path does not contain /sbin , which is the usual location of the ip command.