How process substitution is implemented in bash?
I was researching the other question, when I realized I don’t understand what’s happening under the hood, what are those /dev/fd/* files and how come child processes can open them.
Unix & Linux
Best way to swap filenames
I need to swap filenames of two files (file and file_1). I’m using the following code for it.
What exactly do we mean when we say we are using Linux?
I was going through an article on GNU which goes something like below
Switch to a text console in Fedora
I have switched recently to Fedora 22 from Ubuntu Gnome. In Ubuntu gnome, when my Kodi media center used to hang while in full-screen, I used to press Ctrl+Alt+F1 to switch to terminal.
Directory size calculation difference
I need to get the size of directory in terminal for signing purposes. I’m using following command:
Is it a UUOC (useless use of cat) to redirect one file to another?
If I want to make the contents of file2 match the contents of file1, I could obviously just run cp file1 file2.
Question about behavior of control key shortcuts
I am confused about how Ctrl-key combinations work in terminal. In bash man page, there are various combinations such as:
Number of files containing a given string
How can I count the number of files (in a directory) containing a given string as input in bash/sh?
How to customize PS1 properly?
I customized my bash with this in my bashrc
How can I use a variable as a case condition?
I am trying to use a variable consisting of different strings separated with a | as a case statement test. For example: