In 1969, Ken Thompson developed the UNIX system at Bell Labs in just three weeks, with the editor ed completed in only one week. However, this command-line editor was originally designed to accommodate teleprinters rather than display terminals. As a result, ed does not allow you to directly modify a line of text in an … Read more
(For algorithm enthusiasts, star this post to hone your programming skills) Source: Machine Heart He is the father of the C language, a Turing Award winner in 1983, and a key developer of Unix. However, he missed out on his PhD due to his “rebellious” nature, and his doctoral thesis was lost for half a … Read more
(Click the public account above to quickly follow) [Introduction]: Unknowingly, it has been 6 years since Dennis Ritchie left us. On October 12, 2011, Rob Pike, a colleague who worked with Ritchie for over 20 years, visited him from California to New Jersey, only to find that he had passed away. Since he lived alone, … Read more
Set Script Home as “Starred⭐” to receive article updates immediately Source | Virtual Machine (ID: vmachine) You may be curious about some system calls in Linux, such as creat instead of create and umount instead of unmount. On page 204 of the book UNIX Programming Environment by Brian Kernighan and Rob Pike, the following footnote … Read more
Author: DAVE Translator: Nuclear Cola Editor: Liu Yan Commercial Unix sales are plummeting—this trend must be influenced by certain underlying factors. All the scenarios that once popularized Unix have now become the domain of Linux, which has also reached new heights that Unix could never achieve. Has Linux developed into a perfect and reliable alternative, … Read more
The design philosophy of “everything is a file” is commendable, as it abstracts hardware and processes into files for unified operations. However, this approach becomes less effective in scenarios requiring bidirectional communication, such as network communication, where operating sockets through file read/write operations feels awkward. Windows’ “everything is a handle” is more flexible, as a … Read more
He is the father of the C language, the recipient of the Turing Award in 1983, and a key developer of Unix. However, he missed out on his PhD due to his “stubbornness,” and his doctoral thesis was lost for half a century. Now, this mysterious doctoral thesis has finally resurfaced. Image of Dennis Ritchie … Read more
(Click the public account above to follow quickly) 【Introduction】: Unknowingly, it has been six years since Dennis Ritchie left us. On October 12, 2011, Rob Pike, a colleague who worked with Ritchie for over 20 years, visited him in New Jersey from California, only to find that he had passed away. Due to living alone, … Read more
When compiling a large project, there are often many target files, library files, header files, and the final executable file. There are dependencies between different files. For example, when we compile using the following commands: $gcc -c -o test.o test.c $gcc -o helloworld test.o The executable file helloworld depends on test.o for compilation, while test.o … Read more
Linux | Red Hat Certified | IT Technology | Operations Engineer 👇 Join our technical exchange QQ group with the note [Public Account] for faster access 1. ls Command Syntax: ls [options] [directory or file] Function: For directories, this command lists all subdirectories and files within that directory. For files, it lists the file names … Read more