How to make reading and writing the same file in the same pipeline always “fail”?
Say I have the following script:
Say I have the following script:
I’m running into weird behavior when trying to grep a man page on macOS. For example, the Bash man page clearly has an occurrence of the string NAME:
I have an input file, say, file1, which appears as follows:
I have a couple of hundred html source code files. I need to extract the contents of a particular <div> element from each of these file so I’m going to write a script to loop through each file. The element structure is like this:
I can use ls -ld */ to list all the directory entries in the current directory. Is there a similarly easy way to just list all the regular files in the current directory? I know I can use find
I’ve run into a bit of a puzzle and haven’t had much luck finding a solution. Right now I am (sadly) connected to the net via Verizon 3G. They filter all incoming traffic so it is impossible for me to open ports to accept connections.
I know that “Everything is a file” means that even devices have their filename and path in Unix and Unix-like systems, and that this allows for common tools to be used on a variety of resources regardless of their nature. But I can’t contrast that to Windows, the only other OS I have worked with. I have read some articles about the concept, but I think they are somewhat uneasy to grasp for non-developers. A layman’s explanation is what people need!
Is there a reliable way to check how many colors my terminal emulator supports?
I started to ask this question but answered it while I had it open. I’m going to post this question, follow it up with my solution and leave it open to other potential solutions.