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UNIX for Dummies Questions & Answers
Struggling with mkfifo
Post 50048 by alan on Thursday 15th of April 2004 03:07:57 PM
04-15-2004
Quote:
When I type "what /usr/bin/ksh", I get
$ Revision: 82.10 $
Version 11/16/88
$ Revision: 82.10 $
Version 11/16/88
/usr/bin/ksh:
$Revision: 82.10.1.61 $
Version 11/16/88
PATCH_11_00: arith.o blok.o ctype.o defs.o edit.o echo.o expand.o fault.o io.o string.o stak.o word.o emacs.o vi.o hpux_rel.o args.o builtin.o cmd.o main.o msg.o print.o xec.o name.o macro.o error.o service.o test.o jobs.o history.o 02/09/04
Quote:
Try switching shells. Just type "sh" which will start up a posix shell.
[dev1@la]/home/dev1% sh
[dev1@la]/home/dev1% mkfifo bla
[dev1@la]/home/dev1% cat bla &
[1] 13618
[dev1@la]/home/dev1% echo "hello world" > bla
sh: bla: Cannot create the specified file.
[dev1@la]/home/dev1% ls -l bla
prw-rw-r-- 1 dev1 cadev 0 Apr 15 13:37 bla|
[dev1@la]/home/dev1%
I also tried "csh" (just in case).Same thing:
% csh
% mkfifo bla2
% cat bla2 &
[1] 14009
% echo "hello world" > bla2
bla2: Is a directory.
% ls -l bla2
prw-rw-r-- 1 dev1 cadev 0 Apr 15 13:55 bla2
%
I am stumped. Could all of this be due that my userid is forbidden to use shell commands such as these? If it is the case, wouldn't I be getting an "error" message like "You are not authorized to ... this command..."??
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LEARN ABOUT NETBSD
set_color
set_color(1) fish set_color(1) NAME
set_color - set_color - set the terminal color set_color - set the terminal color Synopsis set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR] Description Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple, cyan, white and normal. o -b, --background Set the background color o -c, --print-colors Prints a list of all valid color names o -h, --help Display help message and exit o -o, --bold Set bold or extra bright mode o -u, --underline Set underlined mode o -v, --version Display version and exit Calling set_color normal will set the terminal color to whatever is the default color of the terminal. Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey font color, while set_color --bold white will result in a white font color. Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator. set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of ncurses and recompile fish against it in order to fix this issue. Version 1.23.1 Sun Jan 8 2012 set_color(1)