Bash File Descriptors Explained
Bash file descriptors are pointers to open files that a process uses. These included stdin, stdout and the stderr streams.
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Bhagwad Park
Bhagwad Park writes for the NameHero blog.
543postsWrites about WordPress, VPS Hosting, Linux Command Line, Website Performance
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Posts by Bhagwad Park
Curl Headers, Cookies, and Authentication
You can do a lot more with curl, than just sending requests. Here's how to change the headers, the cookies, and how to authenticate users.
Linux Process Management: ps, htop, kill, and nice
Linux has a sophisticated toolset to deal with processes in various circumstances from scripting, to monitoring, to control.
Linux find with exec: + vs ;
The "find" command is often used with the "exec" command. Here are the two options you can use, and the difference between them.
Docker Build Cache – How it Works and Invalidating it
Docker heavily optimizes its build process with caching to save time. But it's important to know how to invalidate it.
Git Rebase vs Merge vs Cherry-Pick: When to Use Each
Git has many tools for merging branches and commits. Rebasing, merging, and cherry-picking all have their uses.
Bash Conditional Expressions: [[ vs [ vs test
In bash scripts, we use conditional statements frequently. Whether it’s in an “if fi” logic block or within a “while” or “do” loop, we evaluate statements all the time...
Bash Signal Handling with Trap: EXIT, ERR, INT
Bash in Linux allows us to set functions that run when certain signals are generated - either by the script, or the shell. Here's how.
Bash Debug Mode: set -x and the PS4 Variable
When coding a program, you usually have a full IDE set up with autocomplete and stack tracing, allowing you to pause execution at any point and see what’s going on under...
Echo vs Printf in Bash: What’s the Difference?
Echo and printf can both be used in bash for outputting text. However, echo is for quick output, whereas printf gives you more power.
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