Created
October 23, 2019 06:38
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Check the process ID of `make`.
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| $ make | |
| echo $$ | |
| 98825 | |
| echo $$ | |
| 98826 | |
| echo $$ | |
| 98827 |
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| all: | |
| echo $$$$ | |
| echo $$$$ | |
| echo $$$$ |
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