Hi All,
I am trying to schedule a one time job using the at command with the help of shell script for my project. The shell script should take a parameter as a command line argument from the at command itself. Is it possible to take a command line parameter for a shell script in the command... (3 Replies)
hi,
I have
* an IBM P550 machine,
* an AIX 5.3 running on it and
* an oracle database, already installed on it.
The problem (or question of my own) is:
Oracle tns listener, "CT_LISTENER", and the enterprise manager (EM) of the instance, which is uniq instance and called... (0 Replies)
hi,
I have a problem about the Oracle related components. I'm not able to find any answer yet, and waiting for your responses...
Here is the configuration of my system:
* an IBM P550 machine,
* an AIX 5.3 running on it and
* an oracle database, already installed on it.
The problem (or... (1 Reply)
Hello,
The INPUT file a.txt contains this
a
a
a
b
b
b
I'm trying to execute this shell script from the Unix Command Line like this:
./k.sh a.txt > newfile.txt
#!/usr/bin/sh
infile="$1"
awk '{print $0;}' < $infile
I get this error message on the command line: (9 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
I am trying to find lines in a text file larger than 3 Gb that start with a given string. My command looks like this:
$ look "string" "/home/patrick/filename.txt"
However, this gives me the following message:
"look: /home/patrick/filename.txt: File too large"
So, I have two... (14 Replies)
I want to list all files/lines which except those which contain the pattern ' /proc/' OR ' /sys/' (mind the leading blank).
In a first approach I coded:
find / -exec ls -ld {} | grep -v ' /proc/| /sys/' \; > /tmp/list.txt
But this doesn't work. I got an error (under Ubuntu):
grep:... (5 Replies)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Hi all,
i face an error related to my server ""it's running server"" when i use sqlplus command
$ sqlplus
bash: sqlplus: command not found
the data base is up and running i just need to access the sqlplus to import the dump file as a daily backup.
i already check the directory... (4 Replies)
Hi All,
i am trying to ssh to a remote machine and execute certain command to remote machine through script.
i am able to ssh but after its getting hung at the promt and after pressing ctrl +d i am gettin the out put as
expect: spawn id exp5 not open
while executing
"expect "$" {... (3 Replies)
Discussion started by: Siddharth shivh
3 Replies
LEARN ABOUT LINUX
daemon
DAEMON(3) Linux Programmer's Manual DAEMON(3)NAME
daemon - run in the background
SYNOPSIS
#include <unistd.h>
int daemon(int nochdir, int noclose);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
daemon(): _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
DESCRIPTION
The daemon() function is for programs wishing to detach themselves from the controlling terminal and run in the background as system dae-
mons.
If nochdir is zero, daemon() changes the calling process's current working directory to the root directory ("/"); otherwise, the current
working directory is left unchanged.
If noclose is zero, daemon() redirects standard input, standard output and standard error to /dev/null; otherwise, no changes are made to
these file descriptors.
RETURN VALUE
(This function forks, and if the fork(2) succeeds, the parent calls _exit(2), so that further errors are seen by the child only.) On suc-
cess daemon() returns zero. If an error occurs, daemon() returns -1 and sets errno to any of the errors specified for the fork(2) and set-
sid(2).
CONFORMING TO
Not in POSIX.1-2001. A similar function appears on the BSDs. The daemon() function first appeared in 4.4BSD.
NOTES
The glibc implementation can also return -1 when /dev/null exists but is not a character device with the expected major and minor numbers.
In this case errno need not be set.
SEE ALSO fork(2), setsid(2)COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
GNU 2009-12-05 DAEMON(3)