Self-tutoring about computer science: the tutor mentions a key element of command line thinking. At the command line (Windows or Li|U|nix), a pipe is often shown as | and sends the first command’s output as input to the next command. …
Self-tutoring about people and events from the past: the tutor tells a humorous story. I’ve always loved pencils and erasers. Once, in grade 6, I found an eraser off school grounds, on the side of the road. It was a …
Self-tutoring about PHP: the tutor mentions an idea about PHP global. Consider the file $var1=”hello”; function f1(){ echo $var1; } f1(); //call f1 In the code above, with almost any programming language I know of, $var1 has value “hello” in …
Self-tutoring about Windows: the tutor mentions its find command. Li|U|nix users love grep, which finds lines in a file that contain a certain string. Does Windows command prompt have a similar utility? The answer is yes: find /n “detail” file0.txt …
Self-tutoring about Linux: the tutor mentions a couple of ideas about hard links. In Linux, a hard link is another name for the linked file. It reads from the same disk location as the file’s original name. Moreover, if the …
Self-tutoring about Unix and the echo command: the tutor mentions an aspect of it. echo the_file* will list the files and directories whose names begin with the_file in the current directory. Source: S.M. Sarwar, R. Koretsky, S.A. Sarwar. Unix: the …
Operating systems: Unix: echo command with file_name* Read more »
Self-tutoring about Windows: the tutor mentions how to direct command prompt output to a file. In my experience, just entering the command, then >> outfile.txt will send the output to outfile.txt. For instance,
Self-tutoring about the running lifestyle: the tutor shares an instance. I’ve been doing heavy research lately, so, regrettably, haven’t been spending so much time outside as I would like. More is the shame, since the weather, for Canada, has been …
Tutoring English, vocabulary is always interesting. The tutor mentions the word intractable. intractable: difficult to solve or navigate. My understanding is that intractable can refer to a problem, terrain, or a person. I don’t think I’ve ever used it, and …
Self-tutoring about people and events from the past: the tutor recollects… Danny was a kid most people – myself included – would say was a nice guy. I knew him in grade 8. I was a base kid then, who …