Just hit such a case, mis drop the folder “/bin”.
Enterprise Linux Enterprise Linux Server release 5.7 (Carthage)
os still work. just /bin/ tools no longer functioning, no new access as “/bin/bash” not available.
Now what can be used: scp, vim .. and others in /usr/bin/
Lucky, to find a similar configured box, which should be the same packages version level or lower.
Im using :coreutils-5.97-23.el5
tried to find a box using :coreutils-5.97-23.el5_4.2
[root@box09 bin]# scp -r ractest@box06:/bin/ /
the bins with a bit lower version works fine within current os, as current platform libs provide a compatible runtime.
to solve the problem completely, run #yum update/reinstall to replace all binaries.