$ which echo echo: shell built-in command. $ which ls /bin/ls $ which cat /bin/cat Why is echo not an independent utility like ls, ps, cat etc? Why is it shell specific? Any good reasons?

May 5, 2021 · You cannot make it work because echo doesn't know how to read a stream of data from stdin. It can only echo the arguments you give it, so you need to pass the data in the form of an …

Oct 7, 2021 · In echo 0 > file.txt, with the spaces, > file.txt causes the shell to redirect standard output so that it is written to file.txt (after truncating the file if it already exists). The rest of the command, echo …

Jul 11, 2019 · A shell does open, but starts with this error: script "s.sh" line 1: unknown command "echo". If I type echo test in the shell that just opened, it works: user@machine:~$ echo test test No …

Jan 26, 2024 · How can I echo/print the environment files of a directory/path in a Jenkinsfile during a build? Ask Question Asked 2 years, 1 month ago Modified 2 years, 1 month ago

Apr 17, 2024 · Explore related questions echo pipewire module See similar questions with these tags.

Oct 21, 2019 · @Ah yes, those appear to be duplicate, thanks. Would be nice for a combined answer because there appear to be multiple answers: single quotes around whole string, double quotes …

Jun 23, 2025 · By canonical I meant icanon where the tty line discipline implements a rudimentary line editor, that's separate from echo. cooked can mean different things to different people. cooked is …

Oct 12, 2016 · How to understand the output of echo $-? It looks like some kind of flag characters. I can't get a clue by googling.

Dec 11, 2021 · echo "" outputs a newline, so your file isn’t empty, it contains a newline. ls -l will show you that its size is one byte. To create an empty file, use a command with no output: : > file