计算目录中的文件数

Question

I don't know why this command count also directories as files:

nb_fichier_src=($(find "$file" -type f | wc -l))

In $file I have 51 files and 1 folder, but the output of my instruction is 52!!! I want to count only the number of files in my folder. Any ideas of what is going wrong?

Answer 1

To take care of files with spaces and new lines in filenames better to use find command like this:

nb_fichier_src=$(find . -maxdepth 1 -type f -exec echo . \; | wc -l)

Take note of -exec echo . which prints a single dot for each file found in current directory.

Answer 2

You could test over a glob loop of the directory.

num_files=0
for file in directory/*; do
    [ -f "$file" ] && ((num_files++))
done

Answer 3

You should use:

ls -l | grep -v ^d | wc -l

Note:

• grep: checks for any line beginning with "d" (indicating a directory), and discards that line (-v)
• wc: - do a count of the number of lines (-l) in the output of ls -l

Answer 4

为了避免递归搜索，请使用maxdepth选项：

nb_fichier_src=($(find "$file" -maxdepth 1 -type f | wc -l))