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Diff files present in two different directories

I have two directories with the same list of files. I need to compare all the files present in both the directories using the diff command. Is there a simple command line option to do it, or do I have to write a shell script to get the file listing and then iterate through them? ...
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How to convert floats to human-readable fractions?

Let's say we have 0.33 , we need to output 1/3 . If we have 0.4 , we need to output 2/5 . 26 Answers ...
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Semicolons superfluous at the end of a line in shell scripts?

I have a shell script which contains the following: 5 Answers 5 ...
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Can I “multiply” a string (in C#)?

Suppose I have a string, for example, 13 Answers 13 ...
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What does axis in pandas mean?

Here is my code to generate a dataframe: 21 Answers 21 ...
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How can I exclude one word with grep?

I need something like: 9 Answers 9 ...
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How do I break out of a loop in Perl?

I'm trying to use a break statement in a for loop, but since I'm also using strict subs in my Perl code, I'm getting an error saying: ...
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SSL Error: CERT_UNTRUSTED while using npm command

I am trying to install express framework using npm command but getting following error. 7 Answers ...
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How to check if mysql database exists

Is it possible to check if a (MySQL) database exists after having made a connection. 21 Answers ...
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Can You Get A Users Local LAN IP Address Via JavaScript?

I know the initial reaction to this question is "no" and "it can't be done" and "you shouldn't need it, you are doing something wrong". What I'm trying to do is get the users LAN IP address, and display it on the web page. Why? Because that's what the page I'm working on is all about, showing as muc...