Rishab Kumar
Rishab in Cloud

Rishab in Cloud

Linux commands I use as a Cloud and DevOps Engineer

Linux commands I use as a Cloud and DevOps Engineer

Top 7 Linux commands I use as a Cloud and DevOps Engineer

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Rishab Kumar
ยทFeb 28, 2022ยท

2 min read

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Hey Friends, as we know that I am a huge advocate of Linux and I think it is important aspect if you are entering Cloud Computing or DevOps. I wanted to reflect back on some commonly used linux commands while my time as a Cloud and DevOps Engineer.

Here are the top 7 commands:

๐—น๐˜€ command

ls is probably the most typed command in the terminal. it lists the content of a directory (current directory by default) image.png image.png

๐—ฐ๐—ฑ command

it refers to โ€œchange directoryโ€ meaning it switches to the directory you want. image.png

๐—ฐ๐—ต๐—บ๐—ผ๐—ฑ command

It let's you change the permission of the file. It has a lot of options, the most I used was ๐˜ค๐˜ฉ๐˜ฎ๐˜ฐ๐˜ฅ +๐˜น ๐˜ง๐˜ช๐˜ญ๐˜ฆ.๐˜น which added the execute flag. Basic permissions:

  • r (read)
  • w (write)
  • x (execute)

image.png

๐—ต๐˜๐—ผ๐—ฝ command

interactive process viewer that lets you manage your machineโ€™s resources directly from the terminal. note, it's not installed by default certain times. image.png

๐—ฐ๐—ฎ๐˜ command

Stands for concatenate, lets you create, view, and concatenate files directly from the terminal. I mostly used it to preview a file without opening text editor. image.png

๐˜๐—ฎ๐—ถ๐—น command

it's pretty similar to cat, but only print last 10 lines by default, but it can be changed by adding -n. You can also have a live tail of log file running, that's what I used it for the most. It can be done by adding -f to the command - tail -f filename image.png

๐—ด๐—ฟ๐—ฒ๐—ฝ command

I think grep is really powerful, when working with text files. It searches for lines that match a regular expression. This really helped navigating large log files. image.png

So these are the commands that I feel I used the most on daily basis.

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