32 questions
How do I make ~/doc/file.txt?
I'll make a.out using gccFor example, if you enter a.out 10 xyz,After dynamically assigning 10, you want to save the xyz value in argv.After the print is over, if you do the free style, munmap_chunk()...
What is POSIX?UNIX has spread and a lot of derivatives have emerged, but it's becoming less cohesive, so it's stipulated to maintain compatibility.There is an explanation like this.What was the situat...
We have deployed ns-2 in ubuntu 16.04 to set up sample programming.Sample sources include tcl files and C++ filesALM_app.h, ALM_app.ccALMtree.h, ALMtree.ccALM_con.h, ALM_con.ccALMData.h, ALMData.ccALM...
Title, how to display all directories in a particular directory using the find command I'm looking into it.This time, I would like to display all the directories below the home directory.I tried using...
In the Unix/Linux world, I believe that . and .. exist conceptually in all directories on the file system.cs-a is clearly present in any directory, but it seems a little useless to see . or ...Why doe...
I'm currently studying Linux, and the words Shell, Terminal, and Command Prompt came up.I searched and looked it up, but I don't know the difference.As I am a beginner studying Linux for the first tim...
Recently, I've been fiddling with servers, and I've had more opportunities to use Unix and Linux commands.By the way, I'm curious.Commands such as ls, rm, cd, mkdir, grep, dd, chmod, and suDirectory n...
When I copied all of the directories below the specified directory in CentOS cp-a, some of the permissions were changed.Specifically, I was doing 777 recursively in the image directory, but I changed ...
Is it possible to retrieve all subdomains registered with DNS?$command example.com =>example.com A 111.111.111.111 =>hoge.example.com A 111.111.111.111 =>huga.example.com A 111.111.111.111I'm...
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