Bash Bad File Descriptor Error
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PG P E B Consultant 3
Bad File Descriptor Error In C
25 Oct 2006 12:55:41 +0200 Cc: zsh-users Mailinglist
Bad File Descriptor Golang
> $ ls >& - > /bin/ls: write error: Bad file descriptor > $ cat >&- <<
Bad File Descriptor Mac
so it's not available for writing. Most tools just assume that file descriptors 0, 1 and 2 are available for use and will just write to stdout without checking, so they'll get errors and complain like that when it's closed. > Note that closing stdout with echo works fine, as does > (of course) redirection of ls output to the bit bucket. echo as a shell built-in is handling it gracefully, because zsh is handling what you meant, not what you wrote. Try it with /bin/echo and you'll see it fail in the same way as the other commands. If you want to discard output, redirect it to the bitbucket. Regards, -Phil Follow-Ups: RE: Why do I get a "bad filedescriptor" here? (redirection problem) From: Com MN PG P E B Consultant 3 References: Why do I get a "bad filedescriptor" here? (redirection problem) From: Com MN PG P E B Consultant 3 Messages sorted by: Reverse Date, Date, Thread, Author
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How To Fix Bad File Descriptor
| Containers | Microservices | WebRTC | Java | Linux | Open Stack | Mobile | Security | SDDC bad file descriptor linux Linux Containers Authors: Miska Kaipiainen, Dana Gardner, Ian Khan, Yeshim Deniz, Liz McMillan Related Topics: Linux Containers Linux Containers: Article Bad File Descriptor Error in Linux Stellar http://www.zsh.org/mla/users/2006/msg01095.html Phoenix Linux Data Recovery is a comprehensive data recovery tool By Allen Sood Article Rating: Select ratingGive it 1/5Give it 2/5Give it 3/5Give it 4/5Give it 5/5 July 30, 2009 04:30 AM EDT Reads: 69,281 Related Print Email Feedback Add This Blog This In a Linux system, files, blocks, directories, sockets and other items are referred by corresponding file descriptors. If http://linux.sys-con.com/node/1053821 your system is reporting errors that the file descriptor is bad, one of possible causes is that file system is corrupt and thus, you require restoring from backup. But if backup is not valid enough to restore complete information, you need to use advanced Linux Data Recovery applications. As an instance, you might encounter the below error message with your Linux based system: “Bad file descriptor” You might receive this error while trying to access a file or while trying to boot the system. Cause Possible reasons for the ‘Bad file descriptor’ error to occur are: Linux systems use a special file, called /dev/null (also called the null device). This file removes all the data that is written to it after reporting that the write process has successfully succeeded. You might receive the above error message if /dev/null has been deleted or overwritten. You can infer this cause when file system is reported as read-only at the time of booting through error messages, such as“/dev/null: Read-only filesystem” and “dup2: bad file descriptor” If you get this error message while trying to access
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About http://stackoverflow.com/questions/17261296/write-to-file-descriptor-3-without-writing-to-disk Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Write to file descriptor 3 bad file without writing to disk? up vote 3 down vote favorite 1 Is there a way to interact with file descriptors without having to open a file on disk? This won't work without a file first being assigned to fd3: echo a >&3 bash shell file-descriptor share|improve this question edited Jun 22 at 14:02 asked Jun 23 '13 at 13:41 Zhro 549318 8 What is it bad file descriptor you're trying to achieve? –Fred Foo Jun 23 '13 at 13:42 2 You can use mkfifo to create a fifo queue, that will create an entry in the filesystem but the actual io through it will be in memory. –Kevin Jun 23 '13 at 15:39 add a comment| 1 Answer 1 active oldest votes up vote 9 down vote accepted Depends on what you want to do. Suppose you want to write strings at your leisure and print them reversed. set up a file descriptor redirecting into a process substitution waiting for stdin: $ exec 3> >(rev) $ echo hello world >&3 dlrow olleh When you're done with it, you can close the file descriptor $ exec 3>&- $ echo hello world >&3 bash: 3: Bad file descriptor share|improve this answer answered Jun 23 '13 at 15:34 glenn jackman 121k1682161 My understanding is that this is on-disk in some platforms (where /dev/fd isn't available, and thus a named pipe gets used instead). –Charles Duffy Jun 22 at 14:10 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sig