Text editor
ed [-] [-sx] [-p string] [file]
QNX Neutrino
- -s
 
- Suppress diagnostics.
  Use this option if the standard input to ed is from a script.
 
- -x
 
- Prompt for an encryption key that will be used for reads and writes.
 
- -p string
 
- Specify a command prompt.
 
The ed utility is a text editor.
elvis,
ped,
qed,
vi