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(unset ENV_VAR; exec somecommand) if you want to be equivalent to the original in efficiency (by consuming the subshell). As it is, this adds an extra fork.

Charles Duffy
– Charles Duffy

2017-08-28 17:12:20 +00:00
Commented Aug 28, 2017 at 17:12
1

@Charles indeed, although some shells do that automatically since command is the last command in the subshell invocation.

Stephen Kitt
– Stephen Kitt

2017-08-28 19:01:18 +00:00
Commented Aug 28, 2017 at 19:01
+1 because this way is simple to type for interactive use. I use subshells for one-off changes to the shell environment for a one-liner instead of remembering that it's env -u.

Peter Cordes
– Peter Cordes

2017-08-29 00:37:42 +00:00
Commented Aug 29, 2017 at 0:37

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create code fences with backticks ` or tildes ~
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like so
```
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```python
def function(foo):
print(foo)
```
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