I have this How do I obtain those files as command line arguments in the file-parsing program? For example, suppose that returns ? It seems to me that you want to: I'm not sure grep command which outputs the names of files (in which some patterns Matches), and I want to parse those files with some file-parsing program The pipeline looks like this:
grep -rl "{some-pattern}" | {Some file-parsing-program} & gt; A.out
grep filenames
a ,
b ,
c . How can I pass file names so that I can
{some-file-parse-program} a b c & gt; A.out
grep - Rl "{some_pattern" | Your command & gt; A.out
a.out is a good output file name, but we can give that slide. The
xargs command reads the filenames separated by the white space from the standard input, and then they call
your-command as those names. It may have to invoke
your-command many times; Unless you are using GNU
xargs and you specify
-r ,
your-command used at least once Even if there is no matching file name Without the use of
xargs , you could not use
sed for this task. Without using
xargs , Pearl (and Python) will be clumsy using the
awk to 'trivialize' it; It will be easy to type the code to read the file name from standard input and then process each file in return.
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