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| -rw-r--r-- | Documentation/CodingGuidelines | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index 169b4358c9..11704fb84c 100644 --- a/Documentation/CodingGuidelines +++ b/Documentation/CodingGuidelines @@ -61,6 +61,14 @@ For shell scripts specifically (not exhaustive): redirection target in a variable (as shown above), our code does so because some versions of bash issue a warning without the quotes. + (incorrect) + cat hello > world < universe + echo hello >$world + + (correct) + cat hello >world <universe + echo hello >"$world" + - We prefer $( ... ) for command substitution; unlike ``, it properly nests. It should have been the way Bourne spelled it from day one, but unfortunately isn't. |