Move shell descriptions to the config system

This commit is contained in:
Eric Andersen 2003-08-08 23:41:50 +00:00
parent b287e2e27a
commit 8f4cdd516d

30
README
View File

@ -56,36 +56,6 @@ Supported kernels:
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Shells:
lash is the very smallest shell (adds just 10k) and it is quite usable as
a command prompt, but it is not suitable for any but the most trivial
scripting (such as an initrd that calls insmod a few times) since it does
not understand Bourne shell grammer. It does handle pipes, redirects, and
job control though. Adding in command editing makes it a very nice
lightweight command prompt.
hush is also quite small (just 18k) and it has very complete Bourne shell
grammer. It handles if/then/else/fi just fine, but doesn't handle loops
like for/do/done or case/esac and such. It also currently has a problem
with job control. Using hush is not yet recommended.
msh: The minix shell (adds just 30k) is quite complete and handles things
like for/do/done, case/esac and all the things you expect a Bourne shell to
do. It is not always pedantically correct about Bourne shell grammer (try
running the shell testscript "tests/sh.testcases" on it and compare vs bash)
but for most things it works quite well. It also uses only vfork, so it can
be used on uClinux systems. This was only recently added, so there is still
room to shrink it further...
ash: This adds about 60k in the default configuration and is the most
complete and most pedantically correct shell included with busybox. This
shell was also recently added, and several people (mainly Vladimir and Erik)
have been working on it. There are a number of configurable things at the
top of ash.c as well, so check those out if you want to tweak things.
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Getting help:
When you find you need help, you can check out the BusyBox mailing list