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Answers and rating deltas for
shell script: how to check if an environment variable exists, and get its value?
| Author | Votes | Δ |
|---|---|---|
| Eugene Yarmash | 11 | +0.59 |
| chepner | 5 | -0.01 |
| endurogizer | 4 | +1.73 |
| Robert | 2 | -0.48 |
| Nicolas El Khoury | 0 | -2.65 |
| Preethi Srinivasan | 0 | -2.78 |
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