Linux is the family of Unix-like operating systems that use the Linux kernel.
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votes
1answer
16 views
why . and .. are listed when ls -a command executed?
When I execute the ls -a command, all files and folders in that directory listed, as well as . and .. are listed too.
Why is that? Are they a file or folder?
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votes
1answer
21 views
Is apparmor decreasing the system performance
Is AppArmor decreasing the system performance? Or it doesn't affect it at all. I have a slow system (900mhz cpu) which has AppArmor because it was installed by default I would like to know if it ...
0
votes
1answer
26 views
Multiple option arguments using getopts (bash)
Stuck here and need some help. Thank you in advance. ~Chris
I am trying to process command line arguments using getopts in bash. One of the requirements is for the processing of an arbitrary number ...
2
votes
1answer
16 views
How does irqbalance determine which package to use?
irqbalance --debug shows the following:
Package 0: Core 0, 2, 4, 6, 8, 10, 12, 14
Package 1: Core 1, 3, 5, 7, 9, 11, 13
When I run network applications, it seems like IRQs are being handled by ...
2
votes
2answers
36 views
How to adjust column width in Linux command output
When I used this command on Red Hat Linux
/usr/sbin/ss -i
I get the following output below:
State Recv-Q Send-Q Local Address:Port ...
1
vote
0answers
17 views
How to install precompiled ath9k driver?
I have a Ubuntu and I have cross compiled an ath9k driver for an ARM architecture. The problem is a can't make the install work as I want to work.
README says the following:
Building for external ...
3
votes
2answers
42 views
How can a user restrict their own group rights without being root?
How can I change my user rights from rwx to r-x at the group level? I'm trying to ensure that I cannot touch any data belonging to other users when I am developing and debugging my scripts. Once I've ...
0
votes
0answers
12 views
Not able to configure Squid3 proxy server on Ubuntu Server 12.04
When I install Squid3, I configure my network on squid.conf as acl localnet src 192.168.1.0/24, then I configure proxy settings in my browser. After that it stops the browsing and a message displays ...
-1
votes
0answers
26 views
Not able to Delink the old tables [closed]
When i tried to delink the old tables i'm getting the following error
NOTICE: SELECT COUNT(*) AS count from pg_tables where schemaname='fr' and tablename='check_deny_2013_04_17'
CONTEXT: PL/pgSQL ...
1
vote
1answer
37 views
Do kernel counters for jiffies in state exist in Linux?
I am looking to get time/jiffie stats on the state of a daemon process. The states I'm referring to are mentioned in the Linux Kernel Proc Filesystem document. Running, Sleeping, uninterruptible ...
2
votes
0answers
25 views
How to set up remote graphical sessions on CentOs?
Trying to set up a Centos 6 server configuration where we can automate the running of an application that uses Selenium. In this case, ideally, we should be able to:
Create a graphical session ...
1
vote
2answers
35 views
Does linux modules/drivers belong to kernal space or user space
Some articles say that modules/drivers belong to kernel space as it take part in forming the kernel; (reference: http://www.freesoftwaremagazine.com/articles/drivers_linux)
While others say that ...
1
vote
1answer
36 views
How to access u boot environment from linux?
How can I access and change the u-Boot env variables in linux. Using the u-boot/tools/env directory in u boot directory:
u-boot$ make env
Which created the executable file fw_printenv. I copied ...
2
votes
2answers
202 views
Why read() is slower than getc()? [closed]
Why is read slower than getc?
For example, this:
for (;;) {
chr++;
amr=read(file1, &wc1, 1);
amr2=read(file2, &wc2, 1);
if (wc1 == wc2) {
if ...
0
votes
0answers
7 views
Can I run hostapd in a virtual machine hosted in a windows system?
I would like to know if it is possible to run any linux/unix distribution with hostapd in a virtualized environment.
My idea is to host a small virtual machine, which will use my Windows Host ...
