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Shell Programming and Scripting
Understanding Xargs
Post 303010112 by scrutinizerix on Wednesday 27th of December 2017 04:11:27 AM
12-27-2017
To the moderator
Quote:
---------- Post updated at 11:11 AM ---------- Previous update was at 11:02 AM ----------
Quote:
A string in *nix is a sequence of (not necessarily printable) characters terminated by a null (0x00) character.
xargs usually collects lines read from stdin into one or more long (influenced by several options) parameter lists and executes the command / utility one or more times with the respective parameter list. With the -I option you can define where in that command execution the data from stdin show up. I'd recommend you do some exercises and testing with some innocuous commands and the -t (verbose) option.
xargs usually collects lines read from stdin into one or more long (influenced by several options) parameter lists and executes the command / utility one or more times with the respective parameter list. With the -I option you can define where in that command execution the data from stdin show up. I'd recommend you do some exercises and testing with some innocuous commands and the -t (verbose) option.
2. The problem lies for me considering distinction between the notions "string", "line", "argument", "occurrence" as per the cited manual page.
From xargs manual:
Quote:
Any arguments specified on the command line are given to utility upon
each invocation, followed by some number of the arguments read from the
standard input of xargs
each invocation, followed by some number of the arguments read from the
standard input of xargs
If yes, are occurrences contained in these lines?
I'd like to construct in my mind a sort of "object model" for any of the terms.
Last edited by scrutinizerix; 12-27-2017 at 05:13 AM.. Reason: Text added
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