Csh ambiguous output redirect
http://www.linuxmisc.com/12-unix-shell/449aeb3dd4dde2bc.htm I'm trying to assign the output of my piped commands to a variable in a csh script. The command is: set VAR="`ping $1 2>&1 grep 'unknown' cut -b 7-13`" This doesn't want to work, however. I get a vague "Ambiguous output redirect." I'm lost, because the command itself works when I type it in terminal, and I can see the text unknown
Csh ambiguous output redirect
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WebJul 2, 2013 · In a comment, you say "A minor note, this is csh". That's not a minor note, that's the cause of the problem. xterm is just a terminal emulator, not a shell; all it does is set up a window that provides textual input and output.csh (or bash, or ...) is the shell, the program that interprets the commands you type.. csh has different syntax for … http://www.faqs.org/faqs/unix-faq/shell/csh-whynot/
Web2 Answers. csh is significantly more limited than bash when it comes to file redirection. In csh, you can redirect stdout with the usual > operator, you can redirect both stdout and … WebBig Data Appliance Integrated Software - Version 4.10.0 to 4.11.0 [Release 4.10]: Using csh Fails with "Ambiguous output redirect. Illegal variable name." on BDA V4.
WebMay 31, 2014 · Top Forums Shell Programming and Scripting Ambiguous output redirect in xterm ... I suspect that this is actually due to the system using csh as the default shell such that the xterm is actually running csh rather than bash. I've tried . Code: xterm -hold -e "bash; rsh amaqc01" WebFeb 7, 2016 · Posts: 125. Rep: But for the sake actually answering the question, from the man page. The shell cannot presently redirect diagnostic output. without also redirecting standard output, but ` (command >. output-file) >& error-file' is often an acceptable. workaround. Either output-file or error-file may be. `/dev/tty' to send output to the terminal.
WebYes. "ambiguous output redirect" means you send the output to two places, and you cna only select one. Either program >file or program program2 . You can't do both at one with csh. We see this so often we call it UUOC. Consider this: cat file program versus program
http://tomecat.com/jeffy/tttt/cshredir.html phillip lohr madison wiWebFeb 11, 2009 · About the author: Vivek Gite is the founder of nixCraft, the oldest running blog about Linux and open source. He wrote more than 7k+ posts and helped numerous readers to master IT topics. Join the nixCraft community via RSS Feed or Email Newsletter. 🥺 Was this helpful? Please add a comment to show your appreciation or feedback. … phillip loginWebAug 3, 2024 · 2. If the shell is bash or ksh (version 2024.0.0 and perhaps in others), what you need is this: ./file_1.txt >> file_2.txt 2>&1. That will redirect stderr to stdout which is being appended to file_2.txt. The & lets the shell know that you are working with file descriptors instead of file names. The command that you have doesn't work because the ... tryptophan conditionally essentialWebDec 19, 2013 · Run ssh-copy-id on the local machine (the command below assumes the login id is the same on both machines ssh-copy-id x.x.x.x Actual results: The script exits … tryptophan complete by lidtkehttp://blog.itpub.net/14710393/viewspace-2106342/ tryptophan containsWebJul 12, 2007 · most likely your login id is defined as csh, and you did not define your "shebang line" as sh or ksh on your script, so it assumes csh syntax when you try to run the script. might want to google shebang line and read up on how to create a script vs. a file with commands. insert at first line: tryptophan comaWebDec 25, 2024 · 在文件重定向方面， csh 比bash的限制明显更多。 在 csh 中，可以使用常规的 > 运算符重定向 stdout ，可以使用 >& 运算符重定向 stdout 和 stderr ，可以使用 x9>运算符，但是没有单个运算符可以单独重定向 stderr 。. 通常的解决方法是在子外壳程序中执行命令，将该子外壳程序中的 stdout 重定向到所需的 ... tryptophan collagen