After starting ed, help mode can be enabled using the H command. Is there a way to enable help mode by default, so that I do not have to type H every time I use ed?
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With standard ed, you will have to enter H manually at the start of an interactive editing session, or include H at the start of any ed editing script.
The OpenBSD ed manual suggests this for ed scripts:
H
Toggles the printing of error explanations. By default, explanations are not printed. It is recommended thatedscripts begin with this command to aid in debugging.
The GNU ed implementation has a command line option, -v (or --verbose), which enables H in the editing session. You may alias ed to ed -v if you want this to be the default behavior.
-v,--verbose
be verbose; equivalent to theHcommand
Kusalananda
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Excellent. For GNU ed, all I need to do is to run
rlwrap ed -vp'*'to get a comfortable editing session. – Flux Nov 15 '21 at 07:54 -
man ed, you cannot. – waltinator Nov 15 '21 at 06:12