Various ways to view files
●Displays the number of files in a directory
The ls command allows you to view files in the current directory or in a specific directory.
It can also tell you the number of files instead of the file or directory name.
In such a case, you can get the number of files by using the find command, which is a file search command, together with the wc command, which does the counting
Use the find command with the directory you want to count as an option, the file type with the "-type" option, and then use the pipe "|" to count the number of lines with the wc command with the "-l" option to display the number.
| Display the number of files [root@Lion ~]# find /home/koro/ -type f | wc -l 16 ←16 files exist Display the number of directories [root@Lion ~]# find /var/log -type d | wc -l 6 ←6 directories exist |
●Display the contents of a text file in a table format
To convert data stored as bullets in a text file into a table format and display it, use the column command
| Display the contents of a text file in a table format. [root@Lion ~]# head -15 country_list.txt Japan Afghanistan Algeria Andorra Angola Antigua and Barbuda Argentina Armenia Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados [root@Lion ~]# column country_list.txt Japan Libyan Arab Jamahiriya Afghanistan Liechtenstein Algeria Lithuania Andorra Luxembourg Angola Madagascar Antigua and Barbuda Malawi Argentina Malaysia Armenia Maldives Australia Mali Austria Malta Azerbaijan Marshall Islands Bahamas Mauritania Bahrain Mauritius Bangladesh Mexico Barbados Micronesia |
●Display the contents of a file with line numbers.
The cat command and the less command are commands that display the contents of a file.
To display the file with line numbers, execute the cat command with the "-n" option and the less command with the "-N" option to display the contents of the file with line numbers.
| [root@Lion ~]# cat -n country_list.txt 1 Japan 2 Afghanistan 3 Algeria 4 Andorra 5 Angola 6 Antigua and Barbuda 7 Argentina 8 Armenia 9 Australia 10 Austria 11 Azerbaijan 12 Bahamas 13 Bahrain 14 Bangladesh [root@Lion ~]# less -N country_list.txt 1 Japan 2 Afghanistan 3 Algeria 4 Andorra 5 Angola 6 Antigua and Barbuda 7 Argentina 8 Armenia 9 Australia 10 Austria 11 Azerbaijan 12 Bahamas 13 Bahrain 14 Bangladesh |