在groovy中有grep，pipe，cat的API吗？

Question

在groovy中有grep，pipe，cat的API吗？

Answer 1

Not sure I understand your question.

Do you mean make system calls and pipe the results?

If so, you can just do something like:

println 'cat /Users/tim_yates/.bash_profile'.execute().text

To print the contents of a file

You can pipe process output as well:

def proc = 'cat /Users/tim_yates/.bash_profile'.execute() | 'grep git'.execute()
println proc.text

If you want to get the text of a File using standard Groovy API calls, you can do:

println new File( '/Users/tim_yates/.bash_profile' ).text

And this gets a list of the lines in a file, finds all that contain the word git then prints each one out in turn:

new File( '/Users/tim_yates/.bash_profile' ).text.tokenize( '\n' ).findAll {
  it.contains 'git'
}.each {
  println it
}