I brought eggs from the market, and it says best before 20 days from the date of packing. Say my egg box was packed on 29/July/2020. How do I add days to date using Linux CLI? I want to find out date 29/July/2020 + 20days using the CLI, and how do I do it?
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How can I find the correct ulimit values for a user account or process on Linux systems?
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How do I extract tar.xz files in Linux? Can you tell me command to unzip linux-5.6.13.tar.xz file? How can I uncompressing (or decompressing) all files in the current directory?
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My Nginx web server is behind a reverse proxy server. How do I restore the original and real IP address of my client/visitors when behind a reverse proxy server such as AWS Cloudfront, Fastly, Cloudflare CDN/WAF?
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I need to remove the last character from a line and shell variable such as “
${_allowed_ips}“. For example, each line is as follows in my file:
foo,
bar,
demo,I need output as follows:
foo
bar
demo.
How can I use sed to delete the last character?
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How do I save the terminal output to a file when using BASH/KSH/CSH/TCSH under Linux, macOS, *BSD or Unix-like operating systems?
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Can you explain DEBIAN_FRONTEND apt or apt-get variable? How and why I need to use this in Docker or shell scripts under a Debian and Ubuntu Linux?
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