BASH：如何在命令后的同一行中添加文本

Question

I have to print number of folders in my directory, so i use ls -l $1| grep "^d" | wc -l ls -l $1| grep "^d" | wc -l ls -l $1| grep "^d" | wc -l after that, I would liked to add a text in the same line. any ideas?

Answer 1

Assign the result to a variable, then print the variable on the same line as the directory name.

folders=$(ls -l "$1" | grep "^d" | wc -l)
printf "%s %d\n" "$1" "$folders"

Also, remember to quote your variables, otherwise your script won't work when filenames contain whitespace.

Answer 2

如果您不想使用变量来保存输出，则可以使用echo并将命令放在该echo行的$（）中。

echo $(ls -l $1| grep "^d" | wc -l ) more text to follow here