emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

update shell/README

Browse Source 
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2010-05-20 12:56:14 +02:00
parent a0ec4f500c
commit 131ed3bcc9
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
shell/README
View File

@ -34,7 +34,7 @@ Shell Command Language
It says that shell must implement special built-ins. Special built-ins It says that shell must implement special built-ins. Special built-ins
differ from regular ones by the fact that variable assignments differ from regular ones by the fact that variable assignments
done on special builtin is *PRESERVED*. That is, done on special builtin are *PRESERVED*. That is,
VAR=VAL special_builtin; echo $VAR VAR=VAL special_builtin; echo $VAR
@ -43,7 +43,7 @@ should print VAL.
(Another distinction is that an error in special built-in should (Another distinction is that an error in special built-in should
abort the shell, but this is not such a critical difference, abort the shell, but this is not such a critical difference,
and moreover, at least bash's "set" does not follow this rule, and moreover, at least bash's "set" does not follow this rule,
which is even codified in autoconf now...). which is even codified in autoconf configure logic now...)
List of special builtins: List of special builtins:
@ -73,7 +73,7 @@ unset [-fv] name...
In practice, no one uses this obscure feature - none of these builtins In practice, no one uses this obscure feature - none of these builtins
gives any special reasons to play such dirty tricks. gives any special reasons to play such dirty tricks.
However. This section says that *function invocation* should act However. This section also says that *function invocation* should act
similar to special built-in. That is, variable assignments similar to special built-in. That is, variable assignments
done on function invocation should be preserved after function invocation. done on function invocation should be preserved after function invocation.