01-15-2014
Quote:
Originally Posted by
Jotne
@Corona688
This does not work, it gives me:
[CODE]awk 'FNR==NR {a[$1]++;next} ($2 in a) {print $2}' 2&file
[1] 7183
awk: cmd. line:1: fatal: cannot open file `2' for reading (No such file or directory)
Well, it means what it says... There's no file named '2'. If you want to give it some other, more valid filename, you are free to do so.
It takes the & to mean 'run this command in background and take the text after as a new command'.
Quote:
I would like to substitute file file with some that returns file two or more in on go.
I do not understand this. If you want awk to read the file twice, you tell it the file twice; that's how it works. But I don't think your question is crossing the language barrier very well.
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LEARN ABOUT OPENDARWIN
lessecho
LESSECHO(1) General Commands Manual LESSECHO(1)
NAME
lessecho - expand metacharacters, such as * and ?, in filenames on Unix systems.
SYNOPSIS
lessecho [-ox] [-cx] [-pn] [-dn] [-a] file ...
DESCRIPTION
This manual page documents briefly the lessecho command. This manual page was written for the Debian GNU/Linux distribution because the
original program does not have a manual page.
lessecho is a program that simply echos its filename arguments on standard output. But any argument containing spaces is enclosed in
quotes.
OPTIONS
A summary of options are included below.
-ox Specifies "x" to be the open quote character.
-cx Specifies "x" to be the close quote character.
-pn Specifies "n" to be the open quote character, as an integer.
-dn Specifies "n" to be the close quote character, as an integer.
-a Specifies that all arguments are to be quoted. The default is that only arguments containing spaces are quoted.
SEE ALSO
less(1)
AUTHOR
This manual page was written by Thomas Schoepf <schoepf@debian.org>, for the Debian GNU/Linux system (but may be used by others).
Less was written by Mark Nudelman <markn@greenwoodsoftware.com>
LESSECHO(1)