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Checking Bash exit status of several commands efficiently

...you. Assume command1 and command2 are environment variables that have been set to a command. function mytest { "$@" local status=$? if (( status != 0 )); then echo "error with $1" >&2 fi return $status } mytest "$command1" mytest "$command2" ...
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How to return a string value from a Bash function

... @Evi1M4chine, um...no, you can't. You can set a global variable and call it "return", as I see you do in your scripts. But then that is by convention, NOT actually tied programmatically to the execution of your code. "clearly a better way"? Um, no. Command substi...
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YYYY-MM-DD format date in shell script

...$(date) in my bash shell script, however, I want the date in YYYY-MM-DD format. How do I get this? 13 Answers ...
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How to run multiple shells on Emacs

...-new-buffer-name "*shell*")) ) (generate-new-buffer newbuf) (set-window-dedicated-p currentbuf nil) (set-window-buffer currentbuf newbuf) (shell newbuf) ) ) Many thanks to phils for recommending a rewrite using let, even though the result is even more awful parentheses...:\ ...
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PHP passing $_GET in linux command prompt

...gt; 1067 [class] => A [language] => English ) You can also set environment variables that would be set by the web server, like this: REQUEST_URI='/index.php' SCRIPT_NAME='/index.php' php-cgi -f index.php left=1058 right=1067 class=A language=English ...
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How to delete a folder with files using Java

... Java isn't able to delete folders with data in it. You have to delete all files before deleting the folder. Use something like: String[]entries = index.list(); for(String s: entries){ File currentFile = new File(index.getPath(),s); currentFi...
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How do I remove duplicates from a C# array?

...tinct(StringComparer.OrdinalIgnoreCase) to get a case-insensitive distinct set of strings. – justisb Oct 13 '15 at 16:26 ...
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Java 8: performance of Streams vs Collections

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How in node to split string by newline ('\n')?

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How to create a GUID/UUID in Python

How do I create a GUID in Python that is platform independent? I hear there is a method using ActivePython on Windows but it's Windows only because it uses COM. Is there a method using plain Python? ...