If you know you're always going to use Bash, it's much easier to always use the double bracket conditional compound command [[ . ... <看更多>

The base problem is that the command being sent over ssh is in double-quotes, so the $( ... ) and $UP are being expanded by the local shell ... ... <看更多>

Small fix to the incolor/outcolor normalization parts to ensure a value returns at least 0 as opposed to null/nothing. This will resolve any "[: -gt: unary ... ... <看更多>

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