小编Bya*_*gan的帖子

有什么方法可以同时使用 while 循环和 grep 吗？看我的例子：

while  [[  !(grep -R -h "${text}" ${path}) ]];
do
    ...
done

它说：

./test_script.sh: line 1: conditional binary operator expected
./test_script.sh: line 1: expected `)'
./test_script.sh: line 1: syntax error near `-R'
./test_script.sh: line 1: `while  [[  !(grep -R -h "${text}" ${path}) ]];'