Even though POSIX.1 lists -a/-o as options to "test", they are marked "Obsolescent XSI". Scripts using these expressions should be converted as follow:
test "$1" -a "$2" should be written as: test "$1" && test "$2" Likewise test "$1" -o "$2" should be written as: test "$1" test "$2" But note that, in test, -a has higher precedence than -o while "&&" and "||" have equal precedence in the shell. The reason for this is that the precedence rules were never well specified, and this made many sane-looking uses of "test -a/-o" problematic. For example, if $x is "=", these work according to POSIX (it's not portable, but in practice it's okay): $ test -z "$x" $ test -z "$x" && test a = b but this doesn't $ test -z "$x" -a a = b bash: test: too many arguments because it groups "test -n = -a" and is left with "a = b". Similarly, if $x is "-f", these $ test "$x" $ test "$x" || test c = d correctly adds an implicit "-n", but this fails: $ test "$x" -o c = d bash: test: too many arguments Signed-off-by: Elia Pinto <gitter.spi...@gmail.com> --- Inspired from this discussion http://permalink.gmane.org/gmane.comp.version-control.git/137056 git-bisect.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/git-bisect.sh b/git-bisect.sh index af4d04c..1e0d602 100755 --- a/git-bisect.sh +++ b/git-bisect.sh @@ -408,7 +408,7 @@ bisect_replay () { bisect_reset while read git bisect command rev do - test "$git $bisect" = "git bisect" -o "$git" = "git-bisect" || continue + test "$git $bisect" = "git bisect" || test "$git" = "git-bisect" || continue if test "$git" = "git-bisect" then rev="$command" -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
