3 ms·

You can use grep '.*' > /etc/password instead of cat > /etc/password

• jvdh 17y ago
  since echo still worked, why would you need grep for that one?
  • lsb 17y ago
    echo, as he says, was built into the korn shell, whereas grep was a binary he deleted from the filesystem.
  • fhars 17y ago
    Because it does something entirely different. "echo " is the same as "ls", while "grep '.'" is the same as "cat".