在while循環中退出bash腳本

Question

如何從查找管道while循環中退出腳本？

E.g.下面的退出只是退出管道子shell：

find some_directory -type d|while read dir_name; do 
    if [ -w "$dir_name" ]; then 
    exit 1 
    fi 
done 

Answer 1

您可以檢查管道的返回狀態：

if ! find some_directory -type d|while read dir_name; do 
    if [ -w "$dir_name" ]; then 
    exit 1 
    fi 
done; then exit 1; fi 

或者更簡單地說：

find some_directory -type d|while read dir_name; do 
     [ -w "$dir_name" ] && exit 1 
    done || exit 1