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Check if UIColor is dark or bright?
...UIColor (picked by the user) is dark or bright, so I can change the color of a line of text that sits on top of that color, for better readability.
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How to check if a process is running via a batch script
How can I check if an application is running from a batch (well cmd) file?
18 Answers
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git mv and only change case of directory
While I found similar question I didn't find an answer to my problem
11 Answers
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Use space as a delimiter with cut command
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cut -d ' ' -f 2
Where 2 is the field number of the space-delimited field you want.
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How can I remove a commit on GitHub? [duplicate]
...se see alternative to git rebase -i in the comments below—
git reset --soft HEAD^
First, remove the commit on your local repository. You can do this using git rebase -i. For example, if it's your last commit, you can do git rebase -i HEAD~2 and delete the second line within the editor window that...
How to add color to Github's README.md file
I have a README.md file for my project underscore-cli , a pretty sweet tool for hacking JSON and JS on the command-line.
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How do you create a random string that's suitable for a session ID in PostgreSQL?
I'd like to make a random string for use in session verification using PostgreSQL. I know I can get a random number with SELECT random() , so I tried SELECT md5(random()) , but that doesn't work. How can I do this?
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How to check size of a file using Bash?
I've got a script that checks for 0-size, but I thought there must be an easier way to check for file sizes instead. I.e. file.txt is normally 100k; how to make a script check if it is less than 90k (including 0), and make it do wget a new copy because the file is corrupt in this case.
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What is tail call optimization?
...il-call optimization is where you are able to avoid allocating a new stack frame for a function because the calling function will simply return the value that it gets from the called function. The most common use is tail-recursion, where a recursive function written to take advantage of tail-call op...
Is there a way to squash a number of commits non-interactively?
I'm trying to squash a range of commits - HEAD to HEAD~3. Is there a quick way to do this, or do I need to use rebase --interactive?
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