bash - How to escape hyphen(-) in shell script? -


this question has answer here:

my bash script keeps failing because gets confused @ hyphen:

if [ ! -d "$openssl-1.0.1i"]; ...

how escape correctly?

it's not hyphen, must leave space surrounding each argument in test construct:

if [ ! -d "$openssl-1.0.1i" ]; ..

why have $ before openssl? it's not variable it? if not, should just:

if [ ! -d "openssl-1.0.1i" ]; ..

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