If a background process tries to read from the terminal, it will be stopped. This is normal terminal and shell behavior. Only foreground processes are allowed to control the terminal like that.
To prevent it from reading from the terminal, run it with nohup to prevent it from accessing the terminal. This will redirect stdin/stdout/stderr automatically. stdin will connect to /dev/null, while stdout and stderr will be saved to a file in the current directory.
I have been trying to get the output of an ssh session pushed to file... the problem is that there are colors in the output, and when I view the file the colors show up as "^[00m" or other such various nonsense
The weird part is that if I do this all manually, I have no problems, but if I try to... (0 Replies)
I have a simple csh-script on a Solaris Workstaion which invokes the bc calculator:
#!/bin/csh
set shz=2
set zshift=5
set shzp=`bc -l <<END \
scale = 3 \
-1. * $shz + $zshift \
END`
echo $shzp
The result ($shzp) in this case is 3 (-1*2+5). It works fine on Solaris 8.
... (2 Replies)
I am having hard time understanding what this really do to the environment? I do understand this part "tty -s && stty " but not "istrip"
# stty command is executed only if a tty is attached to the process.
# stty istrip : Strip input characters to 7 bits
tty -s && stty istrip
I am... (3 Replies)
I am trying to find the number of files whose name starts with uni.
Below is the code but it is giving error. :confused:
#!/bin/csh
FILES_NAME ='files_list';
FILE_NAME_PATTERN = 'uni*';
NO_OF_FILES;
ls -l $FILE_NAME_PATTERN > $FILES_NAME ;
NO_OF_FILES = `wc -l $FILES_NAME`;
echo... (3 Replies)
Hi,
I need your help to understand about different processes(tty1,tty2,tty3...) running as root as shown below .What exactly these processes do?
root@bisu-desktop:~# ps -eaf | grep -e tty -e UID
UID PID PPID C STIME TTY TIME CMD
root 761 1 0 10:30 tty5 ... (4 Replies)
Hi All,
I have a requirement where i need to NDM 3 files from LINUX to Mainframe system & trigger a job in mainframe once the 3 files are transmitted successfully.
I am getting an error message in the && operator (the code component where i am checking whether step 1/2/3 are completed).
... (2 Replies)
I'm having a strange problem with basic >& output redirection to a simple log file in csh. When I run this particular output redirection on the command line, it works, but then when I run the same output redirection command >& in my c shell script, I get a blank log file. Nothing is output to the... (5 Replies)
I am using an awk command to extract a particular portion of a string. Below is the command and its output on a Linux system:
oracle@host1:/tmp (/home/oracle)
$uname -a
Linux host1 2.6.32-279.39.1.el6.x86_64 #1 SMP Fri Nov 15 05:38:26 EST 2013 x86_64 x86_64 x86_64 GNU/Linux
... (7 Replies)
i am new player in linux
what does mean ">& and >&!" in script or command line?
thanks (4 Replies)
Discussion started by: abdossamad2003
4 Replies
LEARN ABOUT SUSE
nohup
NOHUP(1) User Commands NOHUP(1)NAME
nohup - run a command immune to hangups, with output to a non-tty
SYNOPSIS
nohup COMMAND [ARG]...
nohup OPTION
DESCRIPTION
Run COMMAND, ignoring hangup signals.
--help display this help and exit
--version
output version information and exit
If standard input is a terminal, redirect it from /dev/null. If standard output is a terminal, append output to `nohup.out' if possible,
`$HOME/nohup.out' otherwise. If standard error is a terminal, redirect it to standard output. To save output to FILE, use `nohup COMMAND
> FILE'.
NOTE: your shell may have its own version of nohup, which usually supersedes the version described here. Please refer to your shell's doc-
umentation for details about the options it supports.
AUTHOR
Written by Jim Meyering.
REPORTING BUGS
Report nohup bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for nohup is maintained as a Texinfo manual. If the info and nohup programs are properly installed at your site,
the command
info coreutils 'nohup invocation'
should give you access to the complete manual.
GNU coreutils 7.1 July 2010 NOHUP(1)