Use the output of a cat command in execution (bash)

Question

Simple question I think.. but I couldnt find it with google..

I have a file test.txt.. it contains;

blah
blah2
blah3

What I want to do is;

cat test.txt and then execute;

./script blah
./script blah2
./script blah3

But I want to do it in one line.. What would be the best ways to do it.. ? I know using && is a option.. but maybe there are better ways to pass the string?

Answer 1

No need for cat (or any other external tool for that matter). Something like:

while read line; do ./script "$line"; done < test.txt

does what you want, using the shell builtin read .

As pointed out in the comments, this assumes that you are in the same directory as the script. If not, replace ./script with path/to/script .

Answer 2

使用xargs ：

xargs -n 1 ./script < test.txt