Questions tagged [linux]
A family of Unix-like operating systems using the Linux kernel. If your question is about a certain distribution only, use a more specific tag.
58,802
questions
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Strange Hard Disk and Operating System Behaviour
When I was working on my laptop (Dell Inspiron), in which the OS is Kali Linux, I suddenly saw that the pictures- for example the terminal picture and the firefox picture on the left menu bar - along ...
1
vote
1
answer
362
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Android & AndroidPC: how to install Git-SCM?
I see several apps from the Play store. They are either Terminal or Terminal emulating apps (emulation provides the supposedly similar functionality, validation?). The Termux is becoming a popular ...
2
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4
answers
12k
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SElinux prevent cron from running Centos 7
I was using a cronjob to start a script that will trigger my teamspeak on reboot
It was working fine for a while until i activated Selinux the cron dont work anymore
I have this error on the cron ...
0
votes
2
answers
213
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What is the purpose of configuring the netmask on an ipv4 interface on a Linux machine?
I am wondering what is the netmask used for in the Linux network stack.
Let's assume I have an interface eth0 configured to ip 1.1.1.1 and netmask 255.255.255.0
now I am sending a packet to 1.1.1.2 ...
0
votes
1
answer
66
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Shell script prompt after java connection
I am trying to put a prompt in the middle of a shell script that starts java processes, however the prompt always gets executed first because of the delay in the java connections. Is there a way I can ...
5
votes
2
answers
3k
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Cinnamon Text / Icons disappearing
Two of our Linux clients are running Debian 8.5 with the Cinnamon DE.
This Problem seems to only occur on the Cinnamon DE.
Randomly the text and icons in the panel just disappear. The system keeps ...
1
vote
0
answers
314
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How to improve Surface Pro 4 resolution when running Linux Mint Mate in a Virtual Machine?
The screen is too small and I can't seem to work out how to fix it.
Can anyone experimenting with or knowing about Linux Mint in a Surface Pro 4 help?
1
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0
answers
2k
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how to install sudo on msys shell
I work with msys shell on windows 8.1
but when I use "sudo" I get this error
bash: sudo: command not found
and my $PATH is :
/usr/local/bin:/usr/bin:/bin:/opt/bin:/c/ProgramData/Oracle/Java/...
0
votes
0
answers
383
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Starting interactive command on shell started using netcat -e hangs
I have not gotten the time to thoroughly investigate how netcat starts a specified command using the -e option, however I believe that it achieves this by forking itself, it then sets the standard ...
4
votes
0
answers
928
views
Missing Operating System after install of ubuntu on a macbook as only os
I have installed Ubuntu on a 2009 MacBookPro (intel 64 bits) using the iso ubuntu-16.04.1-desktop-amd64.iso and unetbootin to create a live USB.
So basically, I followed the tutorial to create a usb ...
0
votes
0
answers
239
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No internet for client connecting via wlan0 to OpenVPN server but via eth0 works
An OpenVPN server is running on a Raspberry Pi with Raspbian GNU Linux 8. The wlan0 interface of the Pi is associated with ip address 192.168.1.12. The Pi has internet access over wlan0 via gateway ...
6
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3
answers
7k
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Remove non-duplicate lines in Linux
how can I remove non-duplicate lines from text file using any linux program linke sed, awk or any other?
Example:
abc
bbc
abc
bbc
ccc
bbc
Result:
abc
bbc
abc
bbc
bbc
Second list have removed ccc ...
-1
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1
answer
830
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How to install windows and manjaro on a system that already has windows
Sorry that the title of this question may seem unclear, but I really couldn't think of how to phrase this well. Right now, I have a system that has only windows 8.1 (Embedded) on it. By the way, I ...
0
votes
1
answer
101
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Shutting down linux gracefully from the file system?
I've just managed to get raspberry pi network boot working (It's great to be free of the sd card). I've worked with network boot before but only for imaging, never with a fully functional remote file ...
0
votes
1
answer
209
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Script to trigger email when the use % crosses 85%
Output of one netbackup software commands reports below parameters. I want shell script to check the use% and if it > 85 then send email action stating which disk pool Name is greater than 85%.
...
3
votes
2
answers
4k
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How to get parent block device belonging to a given partition?
Let's say I've got partition /dev/sdc1, how do I get the parent block device the partition belongs to (in this case /dev/sdc) ?
Preferably in bash or C.
Something along the way of lsblk output:
~:...
0
votes
1
answer
62
views
Cannot get app on 3000 port from different networks
I have a node.js application running on a linux server(nginx).
xxx.xxx.xxx.xxx:3000/api
When I try to connect from my mobile phone or my computer at house I can. But when I try to connect from my ...
1
vote
3
answers
466
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Connect Desktop and Laptop (both Linux) via router
I have been struggling to enable bidirectional SSH connection from my laptop to desktop, and vice versa.
There is one home network router, and both computers are connected to it with a LAN cable.
I ...
0
votes
2
answers
931
views
Why does Red Hat 7.3 (not RHEL) `ls` show file sizes in bytes, even when `-k` or `--block-size` is specified?
We have an old Linux server, some OS version information, as follows:
$ uname -a
Linux dm.inside.com 2.4.18-17.7.xsmp #1 SMP Tue Oct 8 12:37:04 EDT 2002 i686 unknown
$ cat /etc/redhat-release
Red Hat ...
1
vote
1
answer
713
views
How do I run bootchart on Fedora 23
My computer takes a long time to boot, and I want to analyze the boot process using bootchart.
On Ubuntu, bootchart is provided as a package that installs a command-line tool. That package is not ...
1
vote
0
answers
696
views
How to properly decompile/recompile android APK file?
How to properly decompile and recompile android APK file on Ubuntu, preferably with the minimum tools required, just for this purpose. I need recompile electronic book.
0
votes
3
answers
6k
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Can't SSH into an ODROID C2 with Debian Armbian image?
I just received an ODROID C2 IoT gadget. I flashed an Armbian image with Debian according to Getting Started. I am at the How to login? step:
Login as root on console or via SSH and use password ...
-3
votes
1
answer
207
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Office tools and VLC in Redhat linux 7
I am new in rhel, anyone can tell me how to install office tools (.xls, .docx) in Redhat Linux 7 and other programs like VLC media player in GUI mode.
0
votes
1
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3k
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how do I make function keys switch to different terminals in console mode?
Without running any window manager, just logged in directly to the box in the first terminal session, how can I make F2, F3, F4, etc switch to other terminal "tabs"?
i.e. not using screen or tmux
I ...
2
votes
0
answers
1k
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Nvidia GeForce GT 525M tearing on Ubuntu 16.04 GNU/Linux
I have a Dell Inspiron One 2320 pc with Ubuntu 16.04 and Windows 10 in dualboot.
When i boot into Windows, everything works smooth.
In Linux, xserver-xorg-video-nouveau driver is less tearing, but it ...
0
votes
1
answer
3k
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Router (and masquerade) only from specific IP
I want all traffic coming from 192.168.2.10 on interface eth0 to be masqueraded and forwarded out through interface tun0. I want the response to come back through tun0. I don't want other traffic on ...
2
votes
0
answers
1k
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Raspbian-Boot: Failed to start light display
For some reason when I booted up my pi today, I'm getting the error 'Failed to start light manager. When I look at the details I see these errors:
Any idea's what is causing this and how I could fix ...
3
votes
1
answer
156
views
How to create a new user with all privileges of the current user in Linux terminal?
It is known that useradd is used to add new user accounts.
useradd newuser
The -G flag is used to add groups for respective privileges. Is there a simpler way to create a user will all privileges ...
1
vote
1
answer
925
views
My Iptables block IP range not work
I'm using httpd service on a Linux OS.
My result of iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
DROP tcp -- anywhere ...
0
votes
1
answer
279
views
Edit email Header from CLI
I am trying to find a cli bincode to allow me to manipulate email headers from an IMAP server.
Something like Alpine, but with header editing functionality, like subjects.
Thanks!
1
vote
0
answers
378
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Opensuse Leap script to unmount NFS mount before shutdown or reboot
I have a problem to shutdown/reboot my Laptop when I have my NFS mounted.
It takes a very long time to shutdown/reboot.
In my fstab is:
192.168.x.x:/RAID5 /NAS nfs4 defaults,_netdev,noauto,...
0
votes
1
answer
852
views
How to run su command remotely
I'm a big fan of aliases that save time. Currently I'm supposed to ssh into our remote aws instance by running this command first:
ssh -i ~/.ssh/id_rsa.pem [email protected]
then I should run these ...
4
votes
1
answer
3k
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How to add blank lines above the bottom in terminal
In vim and many other text editors, you can scroll up the end of the file to the top of your screen while showing the rest of the lines as blank. But in terminal, by default, the end of line is fixed ...
2
votes
0
answers
1k
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Why does "xdg-open" with an URL open two extra empty tabs in Opera?
My xdg html default looks like this:
$ xdg-mime query default text/html
opera.desktop
The Exec line in opera.desktop looks like this:
Exec=opera %U
Now, opening a tab in Opera like this:
opera "...
1
vote
2
answers
1k
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Queue a Bash script to run after currently job finishes?
Is there a way to start a Bash script, and then queue up other bash scripts to start when the first one is done?
For context. I’m doing image processing where I need to manually fiddle with and image ...
0
votes
1
answer
633
views
Bridging between network interfaces in linux
Assume I have a linux computer, running an OpenVPN Access Server with the following interfaces:
wwan0 - Internet access, IP 212.179.50.50
tun0 - OpenVPN interface, IP 172.225.25.1 (the SERVER's VPN ...
2
votes
2
answers
906
views
Find sequence in files using HEX Editor
A few days ago, I decided to defragment and optimize my 2TB external Hard Disk using Auslogics Defragmenter. Now, a little background here. The partition that I defragmented was an 1.8TB partition ...
2
votes
0
answers
338
views
How do I reboot a remote Linux server with a failed disk?
I have a somewhat difficult problem. I have a remote server that I won't be nearby to reboot for a few days I'd like to get restarted. The problem is that the disk seems to have crashed and I can't ...
0
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0
answers
1k
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bash and env: something: Permission denied
I use openSuse Leap 42.1.
I had installed Skype long time ago. And it worked all that time. But recently it stopped start and when I run it from terminal I receive an error:
env: /usr/lib/skype/...
0
votes
2
answers
2k
views
Why would Esc-p or Ctrl-p not work in one terminal but work in all the others?
Somehow, when I start my X session in Ubuntu 16.04, I get a Gnome Terminal window with 6 tabs and they all works as expected except for the last tab. That one loses the Esc-p / Alt-P functionality.
...
2
votes
1
answer
2k
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OpenLDAP: Converting flat file (slapd.conf) to OLC (slapd.d)...can't access cn=config
I'm attempting to set up OpenLDAP. I was having trouble with the OLC config option, so I went with the slapd.conf style input as I'm a complete noob at LDAP and it was easier to understand.
I now ...
4
votes
7
answers
48k
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Ubuntu 16.04 stuck on login loop
My computer was running fine until yesterday night, but today it is stuck in a login loop.
I tried going into recovery mode from grub and reconfiguring dpkg packages, but it didn't work, tried ...
0
votes
2
answers
1k
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sed - Function to replace only the NTH occurrence
In the function below (f_ez_sed) I would like to just replace the "NTH_OCCUR" (0~n) occurrence. How I could do that? I have tested MANY methods!
f_ez_sed:
f_ez_sed() {
: 'Facilitate the use of "...
0
votes
1
answer
68
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How to overcome virtual package already provided in effect, but not in practice
I'm trying to install package X, which is dependent on the virtual package named python.
I have python27 installed, and I know that my desired package X works fine with this version; however python27 ...
0
votes
1
answer
5k
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how to permanently disable wifi power management for linux mint 18?
I have upgraded from mint 17.3 to mint 18, and now I experience irritating wifi problems, which are (probably) connected to the power management.
Before the upgrade, I had set it off in the /etc/pm/...
3
votes
1
answer
2k
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How to install Linux using ONLY ethernet
How can I install Linux Debian on PC having only Ethernet and no monitor and i/o devices on that PC so after that I can communicate with that PC only through SSH?
UPD: also I wanted to do this from ...
4
votes
2
answers
377
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How do applications remember authentication for sometime?
In linux some of the applications are able to remember authentication for sometime. For example,
File manager remember authentication for a while, when we provide password to mount a partition. If we ...
0
votes
2
answers
76
views
My code .sh cant run. Help me
#!/usr/bin/expect -f
set port [lindex $argv 0]
spawn ps xu | grep "ssh -f -N -o ConnectTimeout=5 -D $port" | grep -v grep | awk '{ print $2 }' | xargs kill -9
expect eol
I make sure 100% port 1234 is ...
2
votes
2
answers
2k
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How to take user input from bash script when run as executable without terminal?
I am trying to make a bash script which takes some user input and processes as per the input.
The script is executable, and has a shebang.
The script is somewhat like this:
#!/bin/bash
read name -...
0
votes
1
answer
101
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What does the linux "file" command consider "suspicious"?
I was playing with the file command (the command-line utility used to identify file types) and I noticed one of the types it could match was "Suspicious"
What does that actually mean, what kind of ...