How are parentheses interpreted at the command line?
While reading up on how to set up grub, I came across an article claiming that I need to use one of the following two syntaxes,
bash
Why cat, grep and other commands can’t understand files starting with minus sign?
If I have a file which name starting with single or several minus sign, for example –1 it can’t be used as a parameter of many commands. Even if I run cat –1 instead of file content I get unrecognised option error message: cat: unrecognized option '–1' Same effect appears when I type cat "–1" … Read more
Closing a file descriptor, >&- vs <&-
In the bash tutorial I am reading, it says that if you open a file descriptor for reading, i.e.
How do you enter a directory that’s name is only a minus?
I downloaded lessn to my webserver and unzipped it.
Displaying seconds as days/hours/mins/seconds?
Is it possible to easily format seconds as a human-readable time in bash?
How do I find number of vertical lines available in the terminal?
I’m writing a script which shows the git log for a directory when I cd into it. Such a log can be overwhelming, containing hundreds of lines. So far I have been limiting that to a hard-coded 20 lines (... | head -n 20), which is fine on the screen at work, but too much on the smaller MacBook screen at home.
How can I get bash to exit on backtick failure in a similar way to pipefail?
So I like to harden my bash scripts wherever I can (and when not able to delegate to a language like Python/Ruby) to ensure errors do not go uncaught.
What does ‘exec {fd}</dev/watchdog' do in Bash
That is literal, {fd} isn’t a placeholder. I have a script that does this, and does not source in anything, nor does it reference {fd} anywhere else. Is this valid bash?
Abbreviated current directory in shell prompt?
vim has a really nice feature which it utilizes in its paths when they’re a bit long:
How do I use tee to redirect to grep
I don’t have much experience of using tee, so I hope this is not very basic.