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Add Another Entry to the UNIX Haters’ Handbook

I was using the command line to quickly build out a file hierarchy. I wrote something that looked basically like: 1 mkdir -p "~/dir/a b/c d" I meant for dir to be in my home directory. I should have put the ~/ outside the doublequotes. Hence, it actually ended up creating a directory called ~. I thought, “Well that was ...

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Installing Fedora 33 on Macbook Pro 13 inch (late 2011)

This weekend I stumbled on an old Macbook Pro 13 inch from late 2014, with 125GB SSD and 8GB RAM. It’s a machine I’ve taken on trips around the world and back in the day ran many a session, workshop, or demo on sharing all that AppDev goodness you know from JBoss technologies. Well, after verifying that it’s battery works, ...

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Fun with VMware on a 64 GB Mac

I’m having a lot of fun with VMware on this 64 GB Mac: My main OS, obviously, is macOS running work-related stuff.Then, I have Ubuntu Linux for development.I have Kali Linux for doing security work.I have Windows 10 for practicing exploit development.And, finally, I have macOS running in a VM for my personal stuff.I could probably get Android and iOS ...

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Compute MD5 Checksum Hash on Windows and Linux

Use the following commands to print out the MD5 hash for a file. On Windows: 1 2 3 4 > CertUtil -hashfile myfile.txt MD5 MD5 hash of file myfile.txt: 76383c2c0bfca944b57a63830c163ad2 CertUtil: -hashfile command completed successfully. On Linux/Unix: 1 2 $ md5sum.exe myfile.txt 76383c2c0bfca944b57a63830c163ad2 *myfile.txt Published on System Code Geeks with permission by Fahd Shariff, partner at our SCG program. See ...

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Linux Command to Find how Long a process is Running in UNIX

Hello guys, today, I am going to share one of the useful tips to find out how long a particular process is running in Linux. This is very useful while you are troubleshooting an issue and want to know whether your process or service is restarted fine on a daily or weekly basis. So you checked your process is running ...

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Docker is the best thing to happen to Linux since the GNU bread

Its has become an oft-repeated cliche now that docker has become the latest buzzword, both in DevOps circles as well as the open source community. But being the ever cynic and contrarian, I wasn’t quite convinced of its merits until quite recently, I thought it was just another hype that will come and go like all other things. After all, ...

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10 Tips on working fast in UNIX or Linux

10 UNIX Productivity tips Have you ever amazed to see someone working very fast in UNIX, firing commands and doing things quickly? Yes, I have seen that a couple of times and I have always inspired to learn from those superstar developers. In this article or tutorial or whatever you call it, I have dedicated to sharing some UNIX command ...

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