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Maybe slightly better (because easier to read): if (( array[i] != array[j] ))

user1934428
– user1934428

2017-12-21 08:54:02 +00:00
Commented Dec 21, 2017 at 8:54
@user1934428 ah yes. Good call. I'd switched from [ ... ] to [[ ... ]] and forgot that variables can be handled even better with (( ... )).

Chris Davies
– Chris Davies

2017-12-21 09:24:52 +00:00
Commented Dec 21, 2017 at 9:24
@roaima Backticks are not obsolete (or even deprecated) At best, their usage is not recommended.

fpmurphy
– fpmurphy

2017-12-21 09:56:30 +00:00
Commented Dec 21, 2017 at 9:56
@fpmurphy1 I have to disagree with you on that point. See unix.stackexchange.com/q/126927/100397 and mywiki.wooledge.org/BashFAQ/082 and the POSIX statement about $(...) being preferred at pubs.opengroup.org/onlinepubs/9699919799/xrat/…

Chris Davies
– Chris Davies

2017-12-21 14:55:29 +00:00
Commented Dec 21, 2017 at 14:55
@roaima. Good to see that you went to the ONLY authoritative source on the issue, i.e. POSIX. Please explain how the term you used, i..e "obsolete" is equivalent to the term POSIX uses, i.e. "preferred". BTW, neither of the other two sources you quote are authoritative.

fpmurphy
– fpmurphy

2017-12-22 00:52:40 +00:00
Commented Dec 22, 2017 at 0:52

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create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
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indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
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