Bash脚本循环可以计算当前目录中所有文件的文件大小？

Question

Im very new to bash, and I have been given the task to write a bash script incorporating a loop that counts the byte size of all files in the current directory.

I want to use du but Ive been told he wants to see wc as the main command used.

As to how to make a loop accomplish these things, I'm unsure. Can anyone give me an example or point me in the right direction?

Answer 1

for fname in *; do
    your-way-to-display-size-of-file "$fname"
done

Answer 2

You need to gather several bits of bash know-how

to loop over files

for filename in * .[^.]*
do
    ...
done

to use the output of one command in another

command $(other_command ...)

to sum numbers in bash

count=$(($count + 1))

to count the number of bytes in a file with wc

wc -c $filename