Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I have a text file with lots of package names.

package1
package2

# comment
# installing package3 because it was needed for...
package 3

package 4

How can I mass install all packages inside the text file without removing the comments?

share|improve this question

1 Answer 1

up vote 6 down vote accepted

Something along these lines ought to do the trick.

apt-get install $(grep -vE "^\s*#" filename  | tr "\n" " ")

The $(something) construction runs the something command, inserting its output in the command line.

The grep command will exclude any line beginning with a #, optionally allowing for whitespace before it. Then the tr command replaces newlines with spaces.

share|improve this answer
    
Very useful, thank you. –  mikewhatever Dec 5 '13 at 16:01
    
Very slick. Great job. –  Cerin Jul 1 at 0:05

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.