[Linux] Linux commands for counting folders and files, and linux statistics

[Linux] Linux commands for counting folders and files, and linux statistics

# View the number of files in the current directory (excluding files in subdirectories)

Ls-l | grep "^-" | wc-l

# View the number of files in the current directory (including files in sub-Directories) Note: R, representing sub-Directories

Ls-lR | grep "^-" | wc-l

# View the number of folders in the current directory (excluding the directories in the subdirectories). If you want to view the subdirectories, add the R

Ls-l | grep "^ d" | wc-l

# Query the number of all files in the directory with the specified prefix name in the current path
# For example, count the total number of files in all directories starting with "20161124"

Ls-lR 20161124 */| grep "^-" | wc-l

 

Note the following for each command parameter:
Ls-l
This command outputs the information in the specified directory in a long list (the current directory is not specified), and R indicates the "file" in the subdirectory ", this "file" refers to the general term for directories, links, and device files.

Grep "^ d"Indicates the directory,"^ -"Indicates a file

Wc-l
Indicates the number of rows of output information. Because only common files are left after filtering, and a directory or file corresponds to a row, the number of rows of statistics is the number of directories or files.