From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15402 invoked by alias); 24 Apr 2016 10:06:44 -0000 Mailing-List: contact zsh-users-help@zsh.org; run by ezmlm Precedence: bulk X-No-Archive: yes List-Id: Zsh Users List List-Post: List-Help: X-Seq: 21483 Received: (qmail 21695 invoked from network); 24 Apr 2016 10:06:42 -0000 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on f.primenet.com.au X-Spam-Level: X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,FREEMAIL_FROM, FROM_WORDY autolearn=no autolearn_force=no version=3.4.1 Date: Sun, 24 Apr 2016 11:53:42 +0200 From: Meino.Cramer@gmx.de To: zsh-users@zsh.org Subject: I/O edirection and dd Message-ID: <20160424095342.GA11812@solfire> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: mutt-ng/devel-r804 (Linux) X-Provags-ID: V03:K0:vD7gxa6/FaAepFl3x0TyjOKTcs8F87Q+rhJF5CaX8Cjjqwp8mzx bLvWw2M2MERldkzG6+ZLzHkSjdcVkQXPDgh3JBKm2wG7hkO7bju3QK0VYmnjykizjbf0zkw 3AXbrSTMBSWRl93qE/Bm5Hnzr4PO1SfWpqhCJ5ieHitM/15SE5YFRUykaeCOLoPc/5XjEH1 f9jdMg4/lNPs9Kpjknwqg== X-UI-Out-Filterresults: notjunk:1;V01:K0:JgRhNXvQe9g=:bg61+5nd/9+YYtl7Ql8ZL9 8UKQH/61+7ZEg4uGSedtWrCA7u9UtcEtnhsDMjLX0i94g/wTqsjgwF0OXzTJh3EHs1VBH2tSq SewmvvvxnIQqChT56fdt6K70TaO3YmCOsyHL7E1baK6x6HImK0BqvI0tSG4iIvsaBqJaSp3/7 yD8aW8D7wQt0Fvs78IoU4bb1HpVXuw2shdvHI68XaRynzdBaZimWNZc4nHY6hkyuFm35Q6mMx Dww5Py9+8c6WcOC8nRLoHletP3FoktkuiVql2li6S09mgEFd3I6cv7acp8svAGbz0ovJ7f+lw tt5/3Q5zlsEhoWYB9yzGf1wo7pn2sZVZFtRfElM6TLv271xUZXiJLUhHH/2osXR0zFQFvClb9 mnA2WeBFEV3Pk7d8hYL7KibERgnReo9iinX/a95+BgrOFFIRjiPDNC3cuQltVu9mU7aBDxWWq TXz7hjh/DbT6HOTD7xEsBCc2ip/AO8d0yCTEgf3xImD/5k0yyC5mUz4o9u5SkWfEfO2fvaiNB FhBQEdF6bC1LH+HEH9/0tFOrx7GuNALlo7u+8WrxzVebjVTKfm+CGZ7tdTdlrF7pH6s+6oBVK zZgYjTYnV7L96WMP0KnwSTEhg6CFWm4EHOlW0NubuWn0TJiMJSzZVEyf62uLF7RX+nD8KXFb8 hc7W1FnU1r9zBMvu47X7MekPujUHX3dkc4gDjgskZLNotgsJYzEPGN/pdO831Yd+4XiGSEccs m4s/pby8kxKOikYJveRMUEvjcH3uYQVUoL4hUjt/d8tgTYs/KQp6jcNA/D8= Hi, with the pipe cat verylongfile | dd count=512 | file - I want to get the type of file without reading it completly. Unfortunately dd and cat are very chatty and print something like: 512+0 records in 512+0 records out 262144 bytes (262 kB) copied, 0.00396828 s, 66.1 MB/s "Here comes the wanted output of the file command' [2] 32419 broken pipe cat tmp.blend | 32420 done dd count=512 | 32421 done file - I want to get rid of all that - except for the printout of the 'file' command. I tried several permutations and combinations of '{}", "2>&1" and such but beside some additional syntax errors my success was very ....hrmmm....limited. How can I acchieve what I want? Thank you very much in advance for any help! Best regards, Meino