Redirection is (mostly) for files (you redirect streams to/from files). Piping is for processes: you pipe (redirect) streams from one process to another. Essentially what you really do is “connect” one standard stream (usually stdout) of one process to standard stream of another process (usually stdin) via pipe. Pipes have also the synchronization “side effect” … Read more
First import your pipe in component. And then use your pipe in your component. Like this.. pipe.ts /** * filter checkbox list */ @Pipe({ name: ‘filter’, pure: true }) export class FilterPipe{ transform(items: any[], args: any): any { let filter = args.toString(); if(filter !== undefined && filter.length !== null){ if(filter.length === 0 || items.length ===0){ … Read more
cat setup.json | docker run -i ubuntu /bin/bash -c ‘cat’ This worked for me. Remove the -t. Don’t need the -a’s either.
Use parentheses ()’s to combine the commands into a single process, which will concatenate the stdout of each of them. Example 1 (note that $ is the shell prompt): $ (echo zzz; echo aaa; echo kkk) | sort aaa kkk zzz Example 2: (setopt; unsetopt; set) | sort
Currency pipe uses the number one internally for number formatting. So you can use it like this: {{ number | number : ‘1.2-2’}}
As ever so often Zarco Gajic has a solution: Capture the output from a DOS (command/console) Window. This is a copy from his article for future reference: The example runs ‘chkdsk.exe c:\’ and displays the output to Memo1. Put a TMemo (Memo1) and a TButton (Button1) on your form. Put this code in the OnCLick … Read more
If you connect two processes – parent and child – using a pipe, you create the pipe before the fork. The fork makes the both processes have access to both ends of the pipe. This is not desirable. The reading side is supposed to learn that the writer has finished if it notices an EOF … Read more
It is jq that is suppressing the colours. From the man page o –color-output / -C and –monochrome-output / -M: By default, jq outputs colored JSON if writing to a terminal. You can force it to produce color even if writing to a pipe or a file using -C, and disable color with -M So, … Read more
You can use popen() (docs) or proc_open() (docs) to execute a unix command (eg. zip or gzip), and get back stdout as a php stream. flush() (docs) will do its very best to push the contents of php’s output buffer to the browser. Combining all of this will give you what you want (provided that … Read more