Linux CLI 3 🐧 ls, file and less commands
useful commands for navigating and exploring the system file
every command has options and arguments
-l -lt are options.
--help is a long option. -- always comes before a word option.
the first column is the rights to the file
the first character indicates the type of file -(file) d(directory)
the second column indicates the file's hard links
the third column is the file's owner
the fourth column is the file's group owner
the fifth is the file size in bytes
the sixth the file's last modification date
and the seventh the filename
file * displays all files' file type
file Downloads displays the file type for Downloads
file filename displays the file for the file
file filename -b displays file type in brief mode
file [A-D]* displays the files in range, from A to D
file filename -i displays the mime type
less is used to display the content of a text file one page at a time
use up and down arrow keys to scroll one line at a time
use PgUp and PgDn to scroll one page at a time
use home and end to go to the beginning and the end of the file
25g + enter to go the 5th line
q to quit
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