In a narrow sense, Linux is a Unix-like kernel started by Linus Torvalds in 1991. In common usage, Linux is an operating system built around the Linux kernel. This operating system includes many other components, notably from the GNU project, so the term GNU/Linux is sometimes used. There are many ...
0
votes
0answers
8 views
Run script as root under Busybox?
I have written a shell script that has to be run as root under Busybox. My first thought was to add the script to /etc/busybox.conf like this:
/sbin/my_script.sh = ssx root.root
But this only works ...
1
vote
2answers
18 views
How can I set these permissions?
I was so sure of myself, I thought I knew about permissions. Until someone asked me this.
Having these users:
User Group
---- -----
juan juan
pedro pedro
maria maria
jose jose
miguel ...
2
votes
3answers
29 views
Regarding separate a single file into multiple files according to line separation
Currently, I have a plain text file, A, such as
lowest priority
very high significance.
outstanding
very novel
In this file, every line contains a sentence. I want to separate this file into ...
2
votes
1answer
27 views
Difference between bootable and non-bootable partitions
What is the difference between a bootable and non-bootable partition? I know that a user cannot boot a system from a partition marked non-bootable and can from one marked bootable.
I want to know ...
0
votes
1answer
22 views
Do IPTABLE rules apply to other devices on a network?
I have an embedded device that listens to a specific port to be programmed by vendor specific software. If I have a network that consists of a small linux computer and this industrial device would ...
2
votes
1answer
28 views
Nice and child processes
Can someone tell me what the relationship between a specified nice level and child processes ?
for example, if I have a default nice of 0, and i start a script with nice 5, which in turn starts some ...
4
votes
1answer
38 views
Why do Mono applications only start from their own directory?
If I want to run the application monodevelop, I need to chdir to /usr/lib/monodevelop/Bin and then execute ./MonoDevelop.exe. This is the same for all other Mono applications such as banshee, tomboy, ...
4
votes
2answers
31 views
Set process exclusivity in Linux
I am trying to measure the performance of a process. I have widely ranging performance measurements on small bit of single-threaded deterministic code that should perform the same every time.
I would ...
1
vote
1answer
19 views
Swap Utilization Increase with Oracle Coherence
We are using Oracle Coherence on linux servers. However, we noticed that because of Coherence processes running, often our swap utilization % increases too much, sometimes becoming more than 98%, even ...
6
votes
3answers
56 views
Choosing Linux Distro for PostgreSQL
I'll begin by saying I'm a newbie sys admin.
I need a new PostgreSQL 9.1 machine. My go to distro is Debian (for no good reason other than it's what I first learned). However, when I started ...
2
votes
2answers
24 views
Resolve missing package dependencies when trying to install octave
I am trying to install the octave software package on a RHEL 6 Workstation. I have installed the epel-release 6.5 package to enable the EPEL package repository. When I try to install the octave using ...
5
votes
2answers
43 views
Route and “e” flag
k# route -6
Destination Next Hop Flag Met Ref Use If
::/0 fe80::8001 UGDAe 1024 0 0 eth0
[...]
What does flag "e" mean?
0
votes
0answers
30 views
How can I compile getopt and getopts separately? [migrated]
I am looking at the source for bash, and I was able to create a getopts.c using the mkbuiltins executable. Now I am trying to create separate getopt and getopts binaries. How can I go about doing ...
3
votes
1answer
50 views
DHCP server: offer different subnet addresses for different interfaces
I'm running Ubuntu 10.04 on my home router which has multiple network interfaces. I have dhcpd configured to provide addresses from 192.168.1.0/24 subnet on certain interface. However, I'd like to ...
8
votes
2answers
166 views
How can I reserve a block of memory from the Linux kernel?
I have a device that needs a block of memory that is reserved solely for it, without the OS intervening. Is there any way to tell BIOS or the OS that a block of memory is reserved, and it must not ...
