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+## Ksh does not support `|&`. Use `2>&1 |`
+
+### Problematic code:
+
+```sh
+#!/usr/bin/ksh
+make |& tee ~/log
+```
+
+### Correct code:
+
+```sh
+#!/usr/bin/ksh
+make 2>&1 | tee ~/log
+```
+### Rationale:
+
+You are using the Bash specific shorthand `|&`, but your script is running with Ksh. Rewrite it to its full, POSIX-compatible form as shown in the example.
+
+### Exceptions:
+
+None
+
+### Related resources:
+
+* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!
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