Yesterday, was a holiday in India in regards to UGADI (Telugu New Year). A prosperous day to start doing good things in life.
I thought of refreshing my knowledge on Linux Commands, as the project I work on runs on Linux.
There is no immediate need to learn, as I am aware of concepts which I use at work.
New Learning:
I have installed Ubuntu on Windows 10 with the help of below article.
https://docs.microsoft.com/en-us/windows/wsl/install-win10
Below are commands I have learnt.
man cat
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Linux Manual for cat
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pwd
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Present current working directory
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ls
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List contents of current directory
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ls -a
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List all contents including hidden files and folders in current directory
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ls -al
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List all contents including hidden files and folders in current directory with Permissions, Date Time, Size of File.
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cd
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Change directory
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cd ~
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Move to Home directory
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cd ..
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Move to Parent Directory
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cd .
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Move to Current Directory
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cd /
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Move to Root Directory
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ls -l
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List all contents: long listing format
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alias shortcut=”command”
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Creating an alias
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alias
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To see other aliases
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echo “text” > filename.ext
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Creating file with Text
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cp oldfile.ext newfile.ext
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Copying the file content from one file to another
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cat file.ext
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View File Contents
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less file.ext
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View File Contents
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cp file1.txt file2.txt dire/
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Copying the files to directory
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clear
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Clear the Terminal
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cp -r dire1 direc2
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Copying the directory and files to new directory
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mv file1.txt direc2
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Moving the file to directory
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mv file2.txt file3.txt file4.txt directory
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Moving the files to directory
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mv directory directory3
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Moving the directory to new directory
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mv file7.txt file9.txt
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Renaming the file
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mv directory3 newdirectory
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Renaming the directory
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rm file9.txt
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Deleting the file
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rm file10.txt file23.txt
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Deleting multiple files
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rm -r newdirectory
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Deleting the directory - Recursively
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rm -rf newdirectory
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Recursively Force Delete
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tail
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Monitor the Files
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seq 1 100 > file.txt
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Adding sequence of numbers to new file
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Down arrow, we can move down line by line
Up arrow, we can move up line by line
Space Bar, we can move page by page forward
F Key, we can move page by page forward
B Key, we can move page by page backwards
Q key, to exit from less
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Log Files Reading
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tail numbers.txt
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Print last 10 lines by default - latest log
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