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How to get the last character of a string in a shell?
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it is documented. man bash says: Arithmetic expressions starting with a - must be separated by whitespace from the preceding : to be distinguished from the Use Default Values expansion
– mighq
Nov 8 '14 at 18:14
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How does OAuth 2 protect against things like replay attacks using the Security Token?
..."I'll be back".
I thought he was getting my donut, but after 30 minutes I started to get suspicious. So I asked the guy behind the counter "Where's Olaf?". He said "He went to get money". "What do you mean?". "He take note to bank".
Huh... so Olaf took the note that the bank gave me and went back ...
Why is my Git Submodule HEAD detached from master?
...is is a common case when one does not use submodules too often or has just started with submodules. I believe that I am correct in stating, that we all have been there at some point where our submodule's HEAD gets detached.
Cause: Your submodule is not tracking correct branch (default master).
S...
How is Pythons glob.glob ordered?
...ames if the integers present in the files are not zero padded. The sorting starts at 1000, goes up to whatever the highest integer is and then starts back over from the smallest integer. If I zero pad the numbers, just calling sorted on the files sorts them perfectly. So I think this solution solves...
How do I check if a string is valid JSON in Python?
...he JSON that facebook sends back, but most JSON strings from web apps will start with a open square [ or curly { bracket. No images formats I know of start with those characters.
Conversely if you know what image formats might show up, you can check the start of the string for their signatures to ...
Increase heap size in Java
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Define "not working". Does it not start and give you an error? Does it start but use a different heap size?
– Kevin
Oct 14 '09 at 14:50
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How to get the nth occurrence in a string?
I would like to get the starting position of the 2nd occurrence of ABC with something like this:
11 Answers
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Setting up FTP on Amazon Cloud Server [closed]
... save changes, press escape, then type :wq, then hit enter.
Step #4: Restart vsftpd
Restart vsftpd by typing:
> sudo /etc/init.d/vsftpd restart
You should see a message that looks like:
If this doesn't work, try:
> sudo /sbin/service vsftpd restart
Step #5: Create an FTP user
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Execute script after specific delay using JavaScript
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A more compact routine: function delay(ms) { var start_time = Date.now(); while (Date.now() - start_time < ms); }
– Duke
Mar 18 '16 at 6:46
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Search all the occurrences of a string in the entire project in Android Studio
I've just started using Android Studio (IntelliJ), and I now look for the feature to find the occurrence of a string in any of the files in my project. For example: I want to find all the files that contain the string " .getUuid() "
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