Here is my code: The problem is that when I start it like this or without argument, it just closes. I know that the reason for that is exit. Is there any way correct my code so I could start a script with dot at start and terminal wouldn’t close after execution? I don’t want to start it like this:
Tag: linux
Understand the basic concept of a Makefile
I have the following makefile which I am trying to upgrade, but there is a certain element which I am not able to understand what means: I understand that $(OBJDIR)/%.o: is obtained by executing the f90 compiler with flags etc. But why do I need the %.o rule, and what does @make mean. Am I missing a general u…
Use find command with -perm and -maxdepth [closed]
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How to avoid read() from hanging in the following situation?
I have some code that forks a third-party application and redirects its standard output to the parent process, roughly as follows (no error handling here for brevity): I have no code for the third-party application, it is a proprietary binary. When running the third-party application in a terminal with the sa…
Using lines from a file while looping over an unrelated numeric range in bash
I got a task to display all bash fonts/colors/background colors in table where the text is different for each variation and is being taken from file that contains 448 words/random number(I’m working with numbers). Here is my code for displaying all variations Output: enter image description here Code fo…
crontab tee command doesn’t write stdout into txt file, instead clears it [python script] [closed]
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Why is linear search so much faster than binary search?
Consider the following code to find a peak in an array. If I compile with -O3 and use the linear search solution (the peak function) it takes: If I use the binary search solution which should be much faster (the peak_rec function), it takes: I tried turning off optimization but this didn’t change the si…
read() hangs on zombie process
I have a while loop that reads data from a child process using blocking I/O by redirecting stdout of the child process to the parent process. Normally, as soon as the child process exits, a blocking read() in this case will return since the pipe that is read from is closed by the child process. Now I have a c…
Shared library versioning with cmake on github
I have a fairly new project on github that produces a shared library. Going forward, I would like to use semantic versioning (as described at semver.org) for the shared library major/minor/patch numbers in the file name. The project uses CMake. The CMakeLists.txt file refers to CPACK_PACKAGE_VERSION_MAJOR, CP…
Towards understanding availability of xdg-open
I want to open an image, and in Windows I do: I would like to use a Linux approach, where it’s so much easier to run something on the fly. Example: In my Ubuntu, it works. However, when running that in Wandbox (Live Demo), or in any other online compiler, I would most likely get an error: sh: 1: xdg-ope…