Day 2 - Linux

• Listing commands

  ls option_flag arguments --> List the subdirectories and files available in the present directory

  • ls -l--> List the files and directories in long list format with extra information

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  • ls -a --> List all including hidden files and directory

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  • ls *.sh --> list all the files having .sh extension.

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  • ls -i --> List the files and directories with index numbers Inodes

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  • ls -d */ --> list only directories.(we can also specify a pattern)

• Directory commands

  • pwd --> Print work directory. Gives the present working directory.

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  • cd path_to_directory --> Change directory to the provided path

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  • cd ~ or just cd --> Change directory to the home directory

  • cd - --> Go to the last working directory.

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  • cd .. --> Change the directory to one step back.

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  • cd ../.. --> Change directory to 2 levels back.

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  • mkdir directoryName --> Use to make a directory in a specific location

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Examples:

• mkdir newFolder # make a new folder 'newFolder'

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  mkdir .NewFolder # make a hidden directory (also . before a file to make it hidden)

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  mkdir A B C D #make multiple directories at the same time

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  mkdir /home/user/Mydirectory # make a new folder in a specific location

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  mkdir -p A/B/C/D # make a nested directory

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