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makefile:4: *** missing separator. Stop
...ces don't make a tab. Only a tab makes a tab.
To check, I use the command cat -e -t -v makefile_name.
It shows the presence of tabs with ^I and line endings with $. Both are vital to ensure that dependencies end properly and tabs mark the action for the rules so that they are easily identifiable t...
How to write into a file in PHP?
...
Consider fwrite():
<?php
$fp = fopen('lidn.txt', 'w');
fwrite($fp, 'Cats chase mice');
fclose($fp);
?>
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How to add “on delete cascade” constraints?
... 27 '12 at 19:29
Mike Sherrill 'Cat Recall'Mike Sherrill 'Cat Recall'
78.5k1616 gold badges103103 silver badges156156 bronze badges
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VIM + JSLint?
... VIM quickfix window (:copen).
Now set the following in VIM:
set makeprg=cat\ %\ \\\|\ /my/path/to/js\ /my/path/to/mylintrun.js\ %
set errorformat=%f:%l:%c:%m
where you have to change /my/path/to/js to the path to SpiderMonkey and /my/path/to/mylintrun.js to the path where you put the JS files.
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Delete empty lines using sed
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@BenjaminW. Thanks for catching that. Those were not from the original author, but came from Edit 3 when it was changed from regular text to "code", which then "exposed" the `\` escaping. I have fixed them now.
– wisbucky
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Test if remote TCP port is open from a shell script
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As pointed by B. Rhodes, nc (netcat) will do the job. A more compact way to use it:
nc -z <host> <port>
That way nc will only check if the port is open, exiting with 0 on success, 1 on failure.
For a quick interactive check (with a 5 seconds ti...
What is a word boundary in regex?
...rd character and not preceded by one.
Suppose I have a string "This is a cat, and she's awesome", and I am supposed to replace all occurrence(s) the letter 'a' only if this letter exists at the "Boundary of a word", i.e. the letter a inside 'cat' should not be replaced.
So I'll perform regex (in ...
Is there a way to 'uniq' by column?
...first of an equal run." So, it is indeed "the first occurrence of the duplicate before sorting."
– Geremia
Apr 15 '16 at 17:32
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(13: Permission denied) while connecting to upstream:[nginx]
...twork_connect 1
Details
I checked for errors in the SELinux logs:
sudo cat /var/log/audit/audit.log | grep nginx | grep denied
And found that running the following commands fixed my issue:
sudo cat /var/log/audit/audit.log | grep nginx | grep denied | audit2allow -M mynginx
sudo semodule -i m...
Mocha / Chai expect.to.throw not catching thrown errors
... keeps failing on the thrown error, but If I wrap the test case in try and catch and assert on the caught error, it works.
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