All Questions
69
questions
46
votes
7
answers
138k
views
How to automatically run commands on SSH login?
Whenever I login to my Linux server I'd like to have several commands run automatically (set some variables, change location, etc.)
This needs to be done on user login, not on system start.
How can ...
1
vote
2
answers
1k
views
RPM none-zero exit code if a package is already installed
I created a new script to install a few local packages on CentOS 7 without internet. I want script exits upon any error
set -e
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7
rpm --import ./RPM-GPG-...
0
votes
1
answer
486
views
How do I prevent systemd from running my timer after reboot
I have the following oneshot service+timer :
$ systemctl cat stop_syncro.service stop_syncro.timer
# /usr/local/lib/systemd/system/stop_syncro.service
[Unit]
Description=Service d_arret de la Synchro
...
- 465k
0
votes
0
answers
114
views
cannot run command on Centos7
I've got a vps using Centos, the release version is 7.9. I've install the unhide in my vps.it does not work.
I've check the permission, and the file type.
but i still cant run this command . it's ...
0
votes
1
answer
129
views
Getting a Particular Binary Package from A Source Package?
(Sorry if the title is worded incorrectly - I am a newbie in this domain, so please correct me wherever I am wrong)
From https://packages.ubuntu.com/source/bionic/amd64/hdf5, I am trying to get the ...
- 1
0
votes
0
answers
223
views
Issue with add Multiple user account and SSH key using Bash script
As per our requirement we provided our devloper group: devs:r-x to /var/log/httpd directory.
What is the best way to create a user account (in my case Dev User) in a Group using bash scrip, with the ...
0
votes
1
answer
133
views
Dos2unix different behavior on macos and centos?
I have a file which I need to convert to unix format, so I am doing dos2unix filename.txt. But the format of the file after conversion is different on CentOS when compared to the macOS format.
I have ...
- 4,058
0
votes
1
answer
1k
views
How can I correctly run a java batch application (a .jar application) in background on a Linux machine?
I am not a system engineer (I am a software edeveloper).
I have to run a Java application (a runnable .jar file) on a Linux machine (Centos 7). I am connecting to a shell via SSH.
This application is ...
- 1
21
votes
5
answers
25k
views
Execute a command if Linux is idle for 5 minutes
I would like to execute a command such as
notify-send 'a'
if my Linux machine has been idle for 5 minutes.
By idle, I mean the same thing a screen saver that gets activated would use to define "...
- 133
0
votes
0
answers
273
views
How to view or record user's active time in Linux server
I'm a server admin for a university, and we have 4 CentOS servers that students can use for their projects in various classes. The CS professors have asked me to come up with a way to track a user's ...
- 173
0
votes
2
answers
90
views
How to delete any archives older than W weeks, but still keep up to N archives?
I have a CentOS 7 directory that gets filled with tar.gz archives for different packages, where each package can create multiple archive versions.
I'm trying to find a way to delete any archives ...
- 10.2k
2
votes
1
answer
6k
views
bash: /home/user/.bashrc: Permission denied when try to change user from root to user
I'm on centos, when I login as root and use su x to change user to x, it shows this:
bash: /home/x/.bashrc: Permission denied
I try to source ~/.bashrc but nothing changes and I also tried following ...
CommunityBot
- 1
0
votes
1
answer
439
views
How to call .bash_logout on CentOS
I'm trying to call my own .bash_logout on CentOS when a user logs out. However, even when an 'exit' command is sent, .bash_logout is NOT called/executed (it just logs out).
On CentOS, when I type '...
- 5,611
0
votes
1
answer
226
views
Jenkins service user to restart mongodb service
Centos 7.
Usually when I would like to run a sudo command as a non root user, I open up the visudo, and add this line to the right place:
%<userGroup> ALL= NOPASSWD: <command>
when I ...
0
votes
2
answers
44
views
How can I empty files at the same time with same paths?
I have a structure like this:
Father:
├───Charlie
│ └───lang.log
├───Ava
│ └───lang.log
├───Sophia
│ └───lang.log
...
I would like to clean up the scheme. I try:
cat /dev/null > Father/*...
- 75.7k