|&
in place of 2>&1 |
is
undefined.#!/bin/sh
make |& tee ~/log
Either switch to bash:
#!/bin/sh
make 2>&1 | tee ~/log
Your script uses a shell feature not supported by the shebang. Either rewrite the script to be portable, or change the shebang to explicitly require a shell like Bash.
In this case, the non-portable shorthand |&
to pipe
both stdout and stderr can be easily replaced with its written out form
2>&1 |
as shown.
None
ShellCheck is a static analysis tool for shell scripts. This page is part of its documentation.