在BASH中逐行循环文件内容

Question

我有一个名为installer.txt的文件，该文件将逐行包含.tar.gz文件的URL，例如：

http://oscargodson.com/projects/example1.tar.gz
http://oscargodson.com/projects/anotherexample.tar.gz
http://oscargodson.com/projects/onemore.tar.gz 

我尝试过：

#!/bin/bash
file = `cat installs.txt`
for word in file; do
  echo $word
done

但是我的输出是这样的：

Oscars-MacBook-Air:Desktop oscargodson$ ./test.sh
=:                                                     cannot open `=' (No such file or directory)
http://oscargodson.com/projects/example1.tar.gz:       cannot open `http://oscargodson.com/projects/example1.tar.gz' (No such file or directory)
http://oscargodson.com/projects/anotherexample.tar.gz: cannot open `http://oscargodson.com/projects/anotherexample.tar.gz' (No such file or directory)
http://oscargodson.com/projects/onemore.tar.gz:        cannot open `http://oscargodson.com/projects/onemore.tar.gz' (No such file or directory)
file

它应该输出每一行，或者，所以我想。 想法？

Answer 1

您的错误实际上是由赋值语句生成的。 您的作业周围不能有空格。 始终引用rhs及其优良作法。 所以你想要的是

#!/bin/bash -u
file="$(cat installs.txt)"
for word in $file; do
  echo $word
done

我也将您的qoutes改回了$( )因为这是推荐的方式，我认为它也更容易阅读