I have created customized scripts to start httpd and postgres (For CentOS 6) in /etc/init.d. However for it to work even after reboot, I have to put the script in /etc/rc.d/rc0.d, rc1.d, etc.
However, the naming convention for the scripts, for eg, in the directory rc0.d is like this :
How do I know what number to put for my script? Like K16.....etc.
All right. Heres the deal, I need to know everysingle command or funtion there is to create a new c file (file.c). Heres the catch: I cannot use text editors!!!:mad:
I heard of a "gcc" command is that any good?:confused:
Thanks..:cool: (2 Replies)
I am trying to create a application in OSX through UNIX that will run a script to mount an image from a CD-ROM and run the application which it corresponds to, all with double clicking on a icon in OSX. Any thoughts or ideas?
-Mad (3 Replies)
I need to automate the following process:
I have a list of ip address for printers in a file called iplist.txt, I need to take that list and run the command
snmpget -v 1 -c public ip address sysName.0
for each ip address to see if the printer is running snmp, I want to the create a file... (4 Replies)
Hi,
I need help urgently for following issue. Pls help me to resolve this issue.
I am calling sql script file(file1.sql) from UNIX Shell Script(script1.ksh) using sql plus and trying to create flat file that contains all records returned from SQL query in SQL script(file1.sql)
I given... (6 Replies)
Hi,
Can someone help me with creating a bash shell script.
I need to create a script that gets a positive number n as an argument.
The script must create n directories in the current directory with names like map_1, map_2 etcetera. Each directory must be contained within its predecessor. So... (7 Replies)
Hi everyone
I’m not a programmer and my knowledge of scripting is very poor, now I’m stock in a task at work and would really appreciate it if someone could help me out.
Here is the problem:
1. I have a file with 9 million entries that look like this :
611424167
610864581
611881523
609585386... (3 Replies)
Alright, well I did some more research since I originally posted this thread, and as much as I'd like to delete it, I can't, so I'll just extend my initial question a little.
Right now I have 3 scripts:
1#!/bin/bash
# script1 - Write all files modfied x days ago
find .. -daystart -mtime 0... (2 Replies)
Hi all
i am struggling in creating a restore of env files while doing applications clone.
the first file i created for copying the important configurations file
which is running perfect
now for reverting the changes i mean when i am restoring these files to its original places
i have to do... (7 Replies)
Hi all,
I have a PLSQL script which has a IN list where it takes some ids as input. For example
SELECT * FROM EMPLOYEE WHERE EMPLOYEE_ID IN (comma separated list )
I want to run this quest inside a shell script but I would like to prepare the IN list dynamically where the employee ids... (1 Reply)
Hi everyone,
I am completely new to this forum and I have some questions regarding a script I am writing. I would be happy if anyone could help me with the small and precise script which should include if, then, else, while until, case and select.
The scenario is as follows:
1) A user... (3 Replies)
Discussion started by: codenotfound
3 Replies
LEARN ABOUT POSIX
pivot_root
PIVOT_ROOT(8) System Administration PIVOT_ROOT(8)NAME
pivot_root - change the root filesystem
SYNOPSIS
pivot_root new_root put_old
DESCRIPTION
pivot_root moves the root file system of the current process to the directory put_old and makes new_root the new root file system. Since
pivot_root(8) simply calls pivot_root(2), we refer to the man page of the latter for further details.
Note that, depending on the implementation of pivot_root, root and cwd of the caller may or may not change. The following is a sequence for
invoking pivot_root that works in either case, assuming that pivot_root and chroot are in the current PATH:
cd new_root
pivot_root . put_old
exec chroot . command
Note that chroot must be available under the old root and under the new root, because pivot_root may or may not have implicitly changed the
root directory of the shell.
Note that exec chroot changes the running executable, which is necessary if the old root directory should be unmounted afterwards. Also
note that standard input, output, and error may still point to a device on the old root file system, keeping it busy. They can easily be
changed when invoking chroot (see below; note the absence of leading slashes to make it work whether pivot_root has changed the shell's
root or not).
OPTIONS -V, --version
Display version information and exit.
-h, --help
Display help text and exit.
EXAMPLES
Change the root file system to /dev/hda1 from an interactive shell:
mount /dev/hda1 /new-root
cd /new-root
pivot_root . old-root
exec chroot . sh <dev/console >dev/console 2>&1
umount /old-root
Mount the new root file system over NFS from 10.0.0.1:/my_root and run init:
ifconfig lo 127.0.0.1 up # for portmap
# configure Ethernet or such
portmap # for lockd (implicitly started by mount)
mount -o ro 10.0.0.1:/my_root /mnt
killall portmap # portmap keeps old root busy
cd /mnt
pivot_root . old_root
exec chroot . sh -c 'umount /old_root; exec /sbin/init'
<dev/console >dev/console 2>&1
SEE ALSO chroot(1), pivot_root(2), mount(8), switch_root(8), umount(8)AVAILABILITY
The pivot_root command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.
util-linux August 2011 PIVOT_ROOT(8)