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author | jilles <jilles@FreeBSD.org> | 2010-12-21 22:48:56 +0000 |
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committer | jilles <jilles@FreeBSD.org> | 2010-12-21 22:48:56 +0000 |
commit | dbd8131dd6648104df2d955eb6d08a6885e80694 (patch) | |
tree | 4007b98a73e619097fcd2f1a84850705f3290ad0 /bin/sh | |
parent | ae2aabc34981e0a4fc74b41bde3cfd6ff4166022 (diff) | |
download | FreeBSD-src-dbd8131dd6648104df2d955eb6d08a6885e80694.zip FreeBSD-src-dbd8131dd6648104df2d955eb6d08a6885e80694.tar.gz |
sh(1): Explain why it is a bad idea to use aliases in scripts.
Diffstat (limited to 'bin/sh')
-rw-r--r-- | bin/sh/sh.1 | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/bin/sh/sh.1 b/bin/sh/sh.1 index 8f92bbb..275c5e2 100644 --- a/bin/sh/sh.1 +++ b/bin/sh/sh.1 @@ -456,9 +456,10 @@ would become Aliases provide a convenient way for naive users to create shorthands for commands without having to learn how to create functions with arguments. -They can also be -used to create lexically obscure code. -This use is discouraged. +Using aliases in scripts is discouraged +because the command that defines them must be executed +before the code that uses them is parsed. +This is fragile and not portable. .Pp An alias name may be escaped in a command line, so that it is not replaced by its alias value, by using quoting characters within or |