24 lines
535 B
Bash
24 lines
535 B
Bash
#!/bin/bash
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# BASH doesn't actually understand booleans.
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# What you can do however is to trick it by using the fact that the true and false commands return 0 and 1,
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# so it can stand in for boolean algebra if used correctly.
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BOOLEAN1=false
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if $BOOLEAN1; then
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echo "We won't get here because BOOLEAN1 is false."
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fi
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if ! $BOOLEAN1; then
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echo "But we DO get here."
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fi
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BOOLEAN1=true
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if $BOOLEAN1; then
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echo "Now we do get in this as it's been set to true."
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fi
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if ! $BOOLEAN1; then
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echo "And now we DON'T get here."
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fi
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