SUDO YUM not found

ThomasReggi asked:

I am running a Amazon ec2 instance on amazon’s linux.

Whenever I run anything sudo yum it give me this:

sudo: yum: command not found

ec2-user$ rpm -qf /usr/bin/yum

ec2-user$ which yum

which yum while in root gives:

root$ which yum
/usr/bin/which: no yum in (/sbin:/bin:/usr/sbin:/usr/bn:/usr/local/bin:/opt/aws/bin)

This is a new ec2 instance two days old. When I first logged in I ran sudo yum update and everything wen’t well. What changed?

My answer:

You have a typo in root’s PATH.

Instead of /usr/bin the path entry reads /usr/bn.

I can’t be sure if this is because Amazon has screwed up something, or you made a change to your PATH and accidentally deleted the i, but that appears to be the cause of the problem.

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