The problem is, 'time' is not an external command, it is a builtin, and one that doesn't seem to obey normal redirection either! I had to wrap it in brackets to get the shell to catch it.
wget's built-in -q is easier than > /dev/null 2> /dev/null, and -O /dev/null stops it from cluttering your current directory with downloaded files.
In bash, I need to send the STDOUT and STDERR from a command to one file, and then just STDERR to another file. Doing one or the other using redirects is easy, but trying to do both at once is a bit tricky. Anyone have any ideas? (9 Replies)
If I forget to set up stderr redirection on execution of a script, is there a way to set that redirection post-exec? In other words, if I have a script running and no errors are being logged... and then I remember that I forgot the 2>&1 on the script... can I turn it on after the fact?
...and... (1 Reply)
Friends
I have to redirect STDERR messages both to screen and also capture the same in a file.
2 > &1 | tee file works but it also displays the non error messages to file, while i only need error messages.
Can anyone help?? (10 Replies)
Doubt regarding using "exec" command to redirect the STDERR to a file. e.g I did it this way.
mystage.sh
#!/bin/sh exec 2>stage.err
....
....
cat stage.err
mv: cannot move `/root/stage' to a subdirectory of itself, `/root/stage_old/stage'
ls: *.zDB: No such file or... (0 Replies)
% ls -ld /usr /foo
ls: /foo: No such file or directory
drwxr-xr-x 14 root wheel 512 May 18 02:49 /usr
% ls -ld /usr /foo 1>/dev/null/
/dev/null/: Not a directory.
% ls -ld /usr /foo 2>/dev/null/
/dev/null/: Not a directory.
^^Why why why doesn't this work for me. Furthermore, where is... (7 Replies)
I am trying to redirect the output from stderr to a log file from within a bash script. the script is to long to add 2> $logfile to the end of each command. I have been trying to do it with the command exec 2> $logfile This mostly works. Unfortunately, when a read command requires that anything be... (5 Replies)
I'm not a complete novice at unix but I'm not all that advanced either. I'm hoping that someone with a little more knowledge than myself has the answer I'm looking for.
I'm writing a wrapper script that will be passed user commands from the cron...
Ex:
./mywrapper.sh "/usr/bin/ps -ef |... (1 Reply)
Hi,
I already searched through the forum and tried to find a answer for my problem but I didn't found a full working solution, thats way I start this new thread and hope, some can help out.
I wonder that I'm not able to find a working solution for the following scenario:
Working in bash I... (8 Replies)
Hi folks
I need/want to redirect output (stdout, stderr) from an exec call to separate files. One for stderr only and two(!) different (!) ones for the combined output of stderr and stdout.
After some research and testing i got this so far :
(( exec ${command} ${command_parameters} 3>&1... (6 Replies)
I know that
mmmmm 2> error.txt
will send the error message to the specified file instead of the screen. However, I have seen
>&2
in some scripts, and I can't get it to do anything. A source said it sends stdout and stderr to a file. What file?
Ubuntu 18.04.2; Xfce 4.12.3;... (11 Replies)
Discussion started by: Xubuntu56
11 Replies
LEARN ABOUT LINUX
fdformat
FDFORMAT(8) Linux Programmer's Manual FDFORMAT(8)NAME
fdformat - Low-level formats a floppy disk
SYNOPSIS
fdformat [-n] device
DESCRIPTION
fdformat does a low level format on a floppy disk. device is usually one of the following (for floppy devices, the major = 2, and the
minor is shown for informational purposes only):
/dev/fd0d360 (minor = 4)
/dev/fd0h1200 (minor = 8)
/dev/fd0D360 (minor = 12)
/dev/fd0H360 (minor = 12)
/dev/fd0D720 (minor = 16)
/dev/fd0H720 (minor = 16)
/dev/fd0h360 (minor = 20)
/dev/fd0h720 (minor = 24)
/dev/fd0H1440 (minor = 28)
/dev/fd1d360 (minor = 5)
/dev/fd1h1200 (minor = 9)
/dev/fd1D360 (minor = 13)
/dev/fd1H360 (minor = 13)
/dev/fd1D720 (minor = 17)
/dev/fd1H720 (minor = 17)
/dev/fd1h360 (minor = 21)
/dev/fd1h720 (minor = 25)
/dev/fd1H1440 (minor = 29)
The generic floppy devices, /dev/fd0 and /dev/fd1, will fail to work with fdformat when a non-standard format is being used, or if the for-
mat has not been autodetected earlier. In this case, use setfdprm(8) to load the disk parameters.
OPTIONS -n No verify. This option will disable the verification that is performed after the format.
SEE ALSO fd(4), setfdprm(8), mkfs(8), emkfs(8)AUTHOR
Werner Almesberger (almesber@nessie.cs.id.ethz.ch)
AVAILABILITY
The fdformat command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
Linux 0.99 1 February 1993 FDFORMAT(8)