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Generally a bad idea to use eval: bash ./your_script '(echo rm /very/important/files); foo' -- by the time the syntax error occurs, your files are already deleted.

glenn jackman
– glenn jackman

2018-05-30 20:31:05 +00:00
Commented May 30, 2018 at 20:31
./script '/usr/sbin/shutdown -h; x' :)

Jeff Schaller
– Jeff Schaller ♦

2018-05-30 20:33:16 +00:00
Commented May 30, 2018 at 20:33
@StéphaneChazelas: Updated again, however I cannot get it to accept a[1] either way.

jesse_b
– jesse_b

2018-05-30 22:25:10 +00:00
Commented May 30, 2018 at 22:25
@StéphaneChazelas: Quoted $var to prevent globbing. Also I would argue that it's a good thing to tell students RANDOM, EUID, and UID are not valid variable names. :p

jesse_b
– jesse_b

2018-05-30 22:40:15 +00:00
Commented May 30, 2018 at 22:40
Modified again.

jesse_b
– jesse_b

2018-05-30 22:47:23 +00:00
Commented May 30, 2018 at 22:47

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

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
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

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