I’m trying to run a Python script from a shell script within a shell script, but I’m running into some problems. Imagine my root shell script looks like this: and my test2.sh: The python file is in the same directory as test2.sh but test2.sh’s working directory seems to be the root’s s…
egrep two identical numbers and two identical letters n times
Hi I’ve been having trouble with the command egrep. Here is my question: Lets just say I was running in a for loop on these words: I only want to print the word if it has two identical numbers and two identical letters and the word repeats itself. for example in this case the only words that should prin…
How to move content of folder to unique folders every three hours in linux platform?
Whenvever my computer starts up I want to move contents of a folder to a unique folders. For Example, Folder “A” has some Pictures then in the start up I want to MOVE the contents to a new folder “B”. Again after 3 Hours I want to Move the contents from Folder “A” to newly …
Syntax error when trying to pipe multiple commands in an alias definition
Hey can anyone help me to solve syntax error on creation of alias.I am new to bash so i am not aware of any restriction in use of alias command Every time i run this alias command I get this error. Answer Avoid using alias (they’re only allowed in interactive shells) and define a simple function instead…
How do you make a Concourse Linux Machine read executable files? (chmod style)
I am trying to get my Concourse CI Linux VM to run a shell script. But i keep getting the same error: I fixed this locally (non VM, on a Mac) with chmod +x path/filename.sh to make it executable and adding !#/bin/sh to the shell script. But i dont know how to get Concourse/VM to know that it’s an execut…
CMAKE_PREFIX_PATH doesn’t help CMake in finding Qt5
From here: https://stackoverflow.com/a/28327499/462608 I tried this: Here is the output of cmake . This is to show that /opt/Qt5.9.1/ does exist. Here I run the cmake with -DCMAKE option, but the output is still same: Contents of the directory: Answer I installed the following missing packages: Attaching any …
JAX WS Server implementation performance issue for Linux JVM?
I’ve faced with a very weird problem. The built-in JAX WS server implementation works 100 times slower on linux machines then on Mac OS X or Windows. I’ve created and shared a JMH test: https://github.com/Andremoniy/linuxjvmjaxwstest Basically it does the following: starts a JAX WS with one SOAP m…
Amazon Linux: Change default ec2-user when creating an AMI image [closed]
Closed. This question is not about programming or software development. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on anoth…
localhost refuses access on port during Docker tutorial
I’m currently getting started with Docker on a Linux VM provided by my university. To get started with docker I’m doing their tutorial (https://docs.docker.com/get-started/part2/#run-the-app). After creating the files the tutorial says to use the command: docker run -p 4000:80 <name of containe…
Compare A Variable Regularaly Using Linux Scripts and Cron
I’m trying to check if a number differs from what it was last time it was checked, in this case checking a number every minute, using Linux scripts and cron. eg: But the problem I am having is that the variables aren’t accessible between scripts and using source (eg. source script.sh) runs the scr…