Is there a command history in sh, for example how to access it, and as well, how to ensure it is clear?
To clarify shells here: let's say you've logged on to a non-Gui Linux system, and $SHELL is not set to Bash, but rather in Dash or whatever Bourne-like shell that may be.
Man pages referred to a "history" command, which I've seen in some BSD systems, but this was not actually in my shell, and I couldn't easily find the answer in the subsequent sh man and info pages.
decriptor's comment in this post got me thinking maybe it is more to do with needing to learn about the key bindings in sh rather than actually something like the differences between the shells.
Best Answer
unless it is explicitly set, there is no default shell history. to verify if you have it or not, the command
env|grep -i histcan be executed and if you see variables likehistfileetc. (may be capitalized) it means that your shell history is enabled, and you should see where the history file is located. To clear, you can do any decent method, other than deleting the file