Category "linux"

RStudio hangs, won't start on Ubuntu 22.04LTS (R compiled from source)

Just another post about RStudio does not start. I'm using Ubuntu Linux 22.04LTS "jammy". Since the new R version (currently 4.2.0) wasn't available in the repos

NVM: Getting Permission denied with nvm install command

I recently fresh-installed Ubuntu 21.04 and wanted to install nvm: curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.38.0/install.sh | bash Then closed a

Old problem PHP still not resolved. PDO pgsql is slower than pg functions

i fight with same issue as described here: Slow connection PHP PDO Postgres but not MySQL here's the thing - PDO Postgresql connections seem to be really slow

grep positive/negative integer value only

I am looking to grep any positive/negative integers only and no decimals, or any other variation including a number. I have a testpart1.txt which has: This is a

How to get latest file from sftp server to local using mget in linux?

Hi I am following below logic to get the latest file from sftp server. But it is copying all the files. Please help what I need to correct in my logic? datadir=

Tkinter vs Linux (ubuntu/Mint) <KP_Enter> not enabled by default

On Windows the events of the 'Return' key by default are already linked to the <KP_Enter> key. For example selecting a combobox item, or closing a mesageb

user-data shell is not executed when an EC2 instance launched by ASG/Launch Configuration with custom AMI

I have a set of Auto scaling group and launch configuration to manage certain EC2 instances. After changing the AMI to a custom AMI, the user data script that I

Linux getenv() could not get $PS1 or $PS2

My home world is to write a shell. and I must use $PS2. but when I write a code like this: char *ENV_ps2; ENV_ps2 = getenv("PS2"); I just found ENV_ps2 was

BASH: Filter list of files by return value of another command

I have series of directories with (mostly) video files in them, say test1 1.mpg 2.avi 3.mpeg junk.sh test2 123.avi 432.avi 432.srt test3 asdf.m

How to delete or clear all the messages from the POSIX message queue in c?

I want to delete all the messages from the POSIX message queue. I searched on the internet but I didn't find any way to do it instead I found the way to delete

llvm/Support/TargetRegistry.h: No such file or directory

I have this error when I make project in WSL(Ubuntu 20.04). And I have installed LLVM and Clang.Hou should I do? Kconfig Makefile README.md build configs i

npm error installing truffle for ethereum development

When I try to install truffle using npm, the following output appears: npm WARN deprecated [email protected]: This package is broken and no longer maintained

How to undo extracted files by 7z

I was trying to install aws cli. I executed the following command curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" It downloade

when i open unity and make something project then the error is coming that " no usable version of libssl was found "

i am new to linux ubuntu . i am using ubuntu 22.04 . recently i downloaded unity and it is showing error " no usable version of libssl was found " How to fix t

HBase Shell - org.apache.hadoop.hbase.ipc.ServerNotRunningYetException: Server is not running yet

I am trying to set up distributed HBase on 3 nodes. I have already set up hadoop, YARN ZooKeeper and now HBase but when I launch hbase shell and run the simples

How to run multiple "docker cp" commands at the same time in the same Linux VM?

I executed "docker cp" to copy 2 different folders inside a container application to the host. Both the size of the folders are big. However, I found that only

Relationship between shared memory and files

Ignoring some details there are two low-level SHM APIs available for in Linux. We have the older (e.g System V IPC vs POSIX IPC) SysV interface using: ftok shmc

Error installing dotnet-skd-2.2 on virtual linux machine. E: No installation candidate exists for package "libicu"

i try to deploy my .net web application using this guide When i try this command sudo apt install dotnet-sdk-2.2 i get the following error message. The followin

Running commands on remote server transparently

I am developing a number of applications that need a bit more power than my local machine has. So I'd like to run them on a remote machine. This is all fairly s

AWK return/print as associative arrays in Bash

With this command I am trying to filter through my firewall. In order to extract the firewall rule ID number and the IP address. existing=($(ufw status numbered