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Shell Scripting
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Control Flow
Working
Why does
[[ $x == a* ]]
behave differently from
[ $x == a* ]
in Bash?
A
They are identical;
[[ ]]
is just an alias for
[ ]
B
[[ ]]
does pattern matching on the right side and avoids word splitting;
[ ]
globs and splits
C
[ ]
does pattern matching while
[[ ]]
does literal comparison
D
[[ ]]
only works with integers
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