Tagged Questions
These questions are about Linux in general -- NOT specific to a particular distribution. If the question just happens to be in a Linux environment, please specify your Linux distribution in the body of your question, but do NOT use the /linux tag.
0
votes
0answers
7 views
How to delete a corrupted directory that has no inode reference?
andy@Poincare:/media/andy$ ls -l
ls: cannot access torrent-files: Permission denied
ls: cannot access torrent-data: Permission denied
d?????????? ? ? ? ? ? torrent-data
d?????????? ...
0
votes
0answers
3 views
How to auto-unlock SSH keyring upon login
Situation:
I am on Linux Mint 17.3 and have on the station auto-login enabled. I have an SSH key in gnome-keyring.
Objective:
I would like the SSH keyring not to ask me for password. I am aware it ...
0
votes
0answers
4 views
Problem with portable version of GCC
I have some problems with GCC. I want a portable version of GCC because the PC I use for programming cannot be connected to Internet due to some driver issues. So, I read an article on how to compile ...
1
vote
1answer
9 views
The most secure Alpine SSHD Configuration
I'm experimenting with Docker's alpine image and OpenSSH. The sshd_config file that ships with alpine has everything commented out by default. I only uncomment Port 22. I assume this is the most ...
0
votes
1answer
17 views
limit user to only a single command: “su -”
I have setup a web server that hosts a Play! Framework application, the server is an Amazon Linux EC2.
If you are not familiar with Amazon Linux, by default there is a root user and an ec2-user with ...
0
votes
1answer
3 views
How to install Electrum 2.6.3 bitcoin wallet on Ubuntu / Mint and derivates
Today's question of mine was How do I install Electrum 2.6.3 bitcoin wallet on my Linux Mint, Ubuntu and it should work on other derivates.
0
votes
1answer
26 views
practice linux for practical use [on hold]
I have learned and studied linux for 6 months with books like 'The linux commandline'. But, I'm just student, not a business man. When I study linux and do not use it for long time, I always forget ...
-1
votes
1answer
6 views
Transfer files from linux (of linuxdeploy in android) to android (in which linuxdeploy is installed)
I am using Linux on my Android phone via use of Linux deploy.
I have some files in /root/android/ - folder of that linux partition.
And I want one of those files to move to my /storage/sdcard1/ - ...
0
votes
0answers
8 views
who has loaded an identity mapped page table?
I want to understand Linux x86_64 's startup steps, after reading some articles and linux-3.14.65/Documentation/x86/boot.txt, and almost know that the first instruction to run in vmlinux is ...
0
votes
1answer
15 views
Ternary operator and print
What is wrong with below command
awk 'BEGIN {a = 5;b=6; (a==b)? print "a==b" : print "a!=b"}'
Output :
awk: BEGIN {a = 5;b=6; (a==b)? print "a==b" : print "a!=b"}
awk: ...
1
vote
0answers
10 views
No support for locale: en_US.utf8
I am on Linux Mint 17.3. I saw this in the syslog.
Processing triggers for initramfs-tools (0.103ubuntu4.3) ...
Apr 9 12:01:47 vb-nb-mint updates: update-initramfs: Generating ...
-1
votes
1answer
20 views
Arch Linux on MSI Laptop
I am trying to install Arch Linux on my laptop, since my device has Qualcomm Atheros Device e0a1 ethernet it will not connect to internet as given in network configuration wiki [ line with heading No ...
0
votes
2answers
13 views
Ubuntu - Uninstall preinstalled software
I have an Ubuntu derived Distro and I don't need most of the preinstalled programs.
Not everything is listed within the Software Center, for example a Photo-Viewer and a Music Player.
Since I'm a ...
0
votes
1answer
17 views
File command output in AIX and LINUX
I am getting different output while using FILE command in AIX vs LINUX.
File contents :
D|P_APAC_PH_PHINGTF00240_20150731031225|APAC|PH|NN (L) SPEK DYWIDENDOWYCH RYNKÓW ...
-2
votes
2answers
23 views
Using AWK to pull multiple rows [on hold]
For example if i have a file with multiple rows and columns is it possible to pull specific rows and columns?
for example
1 4/8/2016 4/7/2016 4/6/2016
2 john_doe jane_doe sarah_test
3 26 45 20
4 ...
-1
votes
3answers
22 views
changing permission after copy the directory? [on hold]
I have two directory in two different path there are some common subdirectories and files between them I want to copy the content of first directory to the second one meanwhile I need the same ...
0
votes
2answers
57 views
Connect to Linux machine without using SSH or Telnet
I am looking for way to connect to Linux machine without using SSH, Telnet or something similar. The Linux machine stay after a router and I don't have access to it. So opening / closing some ports is ...
0
votes
0answers
20 views
How can I make windows stay opaque when inactive?
I set Xfce to make all windows semi-transparent when they don’t have mouse focus. How can I set a particular window to remain opaque when inactive? Xfce doesn’t have an option to change settings for ...
0
votes
0answers
6 views
Network shares mounted seem to time out
I am running Windows Mint as primary OS on a couple of PCs at home, I also have a server running Windows Server 2008 which serves a couple of Samba shares.
I have mounted these drives via /etc/fstab ...
0
votes
0answers
21 views
Ubuntu does not find shared object file; sudo ldconfig -v did not help
I'm on a 32 bit Xubuntu 15.04 installation on which I have to work with a legacy application, which I only have in binary form. That binary requires libstdc++-libc6.2-2.so.3, which I managed to find ...
0
votes
1answer
17 views
setenv within script does not override value set at prompt
trying to do setenv OMP_NUM_THREADS 8
if at the prompt in a shell I do setenv OMP_NUM_THREADS 4 that is successful. And my program runs on 4 cores if i launch it.
But I have a file called runme ...
0
votes
0answers
17 views
Multicore benchmark
I'm looking for a way to benchmark a multi-core CPU.
I found this
#!/bin/bash
echo "scale=$1; a(1)*4" | bc -l
The first argument is number of digits to calculate. Now we can run in parallel (4 ...
1
vote
1answer
11 views
Listening on tap device for packets written through file descriptor
I have a problem fully understanding how to use tap devices.
I've created a tap device and brought it up and running.
A user space programs opens its file descriptor and receives the ethernet frames ...
0
votes
0answers
14 views
Linux Mint - No Sound
I'm currently using Linux Mint 17.3 Rosa and when I installed it in the first place months ago the sound and everything worked fine. It still does in fact, the problem is that none of the system sound ...
-1
votes
0answers
12 views
Dual Boot Kali Linux with Windows? [on hold]
dual boot(not virtual box) Kali Linux with windows its not safe ?
because my friend tell me that install dual boot kali linux its do not safe for my laptop
1
vote
0answers
8 views
Signal strength average from iw
I was using iw dev wlan0 station dump to get signal strength in an ad-hoc network, and noticed the output has a signal avg row. As average signal strength is actually what I'm interested in, this ...
2
votes
2answers
21 views
User Admin - View Permissions when 750 is used for home
apologies if this question is caused by a fundamental misunderstanding.
But as main admin of a server: I want to make it so that users cant see each others home folders. (so I chmod 750 the home ...
0
votes
0answers
16 views
CentOS: yum update Cannot find a valid baseurl for repo
I am trying to do yum update but I'm getting the following error.
I have exported http_proxy & https_proxy
Have added proxy settings in /etc/yum.conf like:
proxy=http://10.44.208.10:8080
...
0
votes
0answers
9 views
how do i convert .dump back up file to its original form?
I have a .dump-backed up files of 10 personnel but I am having issue reading/converting the .dump file to its original format.
I had used restore -i -f f.dump command and it was not successful.
I'm ...
0
votes
0answers
14 views
minimum time between two consecutive UDP packets
I am interested in developing a C application which sends UDP packets with minimum delay between two consecutive packets.
Is it possible to "book" the UDP stack with the NIC hardware from user space ...
1
vote
4answers
33 views
Install Linux Distro on USB Stick
I'd like to install a full linux distro on my usb stick.
I already tried Lili USB Creator, but it did not boot correctly(I had the option "Install" and "Try", but after that I had a black screen). It ...
0
votes
1answer
34 views
How to get the number of threads on the waiting queue for a cpu?
Is there a way to programmatically get the number of threads waiting for cpu on Linux.
1
vote
0answers
26 views
How to run a jar together with faketime
I need run a certain jar file with a mock time for testing purposes. When I execute the jar in the usual way
$ java -jar myjar.jar
it runs perfectly. But when I try to run it together with ...
3
votes
1answer
29 views
How does APT choose which packages to install?
On my Debian Testing box, I have the following in /etc/apt/sources.list:
deb http://ftp.us.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.us.debian.org/debian/ testing main ...
0
votes
1answer
34 views
Add n days to a date token
My issue as follows: consider I have a token $d=20140607 and I want to add 7 days to it.
I tried date -d "$d+7 days" but it is not working. It throws this error
date: invalid date ...
2
votes
1answer
21 views
Is there a KeyHold event in Xorg?
I have a new Macbook Pro and I installed Arch Linux on it. One thing I want to be able to do is use the media keys to seek through a track (in mpd) and goto the next or previous track. This is ...
0
votes
0answers
24 views
GNU Make4.1 Segmentation Fault
During a make check after compiling GNU Make-4.1, the following error occurs.
make[2]: Entering directory '/mnt/lfs/sources/make-4.1'
cd tests && perl ./run_make_tests.pl -srcdir ...
2
votes
0answers
17 views
Linux usb-drive write cache
Is there any way to change the way the Linux kernel handles external storage and the external storage cache? Every time I copy something to it, the copy process seen from userspace seems really fast. ...
2
votes
3answers
37 views
Open tar-file that ends with .b
I have a tar file that ends with .b and I dont know how to open it. Neither in windows, neither Linux I've been successful to open it.
data.ext4.tar.b
Another tar that ends with .a could easily be ...
0
votes
1answer
20 views
SFTP, SSH Couldn't read packet: Connection reset by peer [duplicate]
My sftp -v to host returns,
Connecting to xxx.xx.xx.xx...
OpenSSH_3.9p1, OpenSSL 0.9.7a Feb 19 2003
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: ...
1
vote
1answer
22 views
How can I merge 2 disk images into one with 2 partitions?
I have 2 (relatively small) disk images for qemu (raw format) containing different filesystems (say fat and ext4).
I want to put them into an usb stick as two different partitions so that I can plug ...
0
votes
0answers
12 views
Mounting CIFS drive between two Linuxes and .smbcredentials: using one user works, another gets “Permission denied”
System A is a Raspberry Pi, named "qfuel-dev". System B is some Debian box locked in a closet named "QQ-GIT".
I have created a share on the Raspberry Pi by editing /etc/samba/smb.conf and added the ...
0
votes
0answers
8 views
Is it possible Linux kernel/installer detected maximum keyboard backlight wrong?
I am on Linux Mint 17.3.
Hardware laptop ASUS N750JV.
Objective:
Determine if the maximum allowed keyboard backlight by Linux system is right.
/sys/class/leds/asus::kbd_backlight/max_brightness
...
2
votes
2answers
16 views
mount + how to identify if local folder is mounted as read only
In my Linux box – red-hat version – 6.7
/dev/mapper/HOME-export is mounted to /export
As the following:
df /export
Filesystem Size Used Avail Use% Mounted on
...
1
vote
0answers
37 views
Is the reader's linux '/usr/bin/mkdir' file larger than 53504 bytes? Has the reader got a virus?
I installed Fedora 19, and immediately listed the /usr/bin directory and saved the listing to a file. 4 hours later I list it again and all the executables have grown in size by about 1668 bytes. ...
3
votes
1answer
34 views
free command output: gentoo (redhat?) vs debian
I noticed there is a difference between outputs of free command:
On debian:
$ free -h
total used free shared buffers cached
Mem: 4.0G 3.4G ...
0
votes
1answer
12 views
linux + configure the checkconfig for new script in /etc/init.d
I want to add new script - doCopy under /etc/init.d
/etc/init.d/copy
how to add this script for chkconfig
so if I will run:
chkconfig --list | grep doCopy
I will get:
doCopy ...
1
vote
1answer
29 views
code to display the text TRUE
I'm a complete newbie and I'm starting to learn the basic for shell scripts. So I apologize if this question is very simple for most users. I'm trying to display the text TRUE to the screen if a file ...
-1
votes
1answer
25 views
Understand sar command output Unix [on hold]
I am trying to analyze my server CPU utilization and processing time .So for that i have taken sar output for the reference.But i am not able to understand it properly i help to understand the output ...
0
votes
0answers
15 views
How the file “.vmlinux.lds.cmd” is produced?
Recently, I want to know how vmlinux.lds is produced, I found a file called .vmlinux.lds.cmd which has:
cmd_arch/x86/kernel/vmlinux.lds := gcc -E -Wp,-MD,arch/x86/kernel/.vmlinux.lds.d -nostdinc ...
