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we7765 authored
The echo shell builtin of the traditional Bourne Shell does not recognize the -e option. Better use printf in this case. From the POSIX manual for printf: RATIONALE The printf utility was added to provide functionality that has histori- cally been provided by echo. However, due to irreconcilable differ- ences in the various versions of echo extant, the version has few special features, leaving those to this new printf utility, which is based on one in the Ninth Edition system.
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