Archivo del Autor: carlosap

Advantages of using set -o vi

By setting your readline editing to either emacs (the default) or vi (set -o vi) you are essentially standardizing your editing commands, across the shell and your editor of choice1. Thus, if you want to edit a command in the shell you use the same commands2 that you would if you were in your text editor.… Leer más »

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AT&T PC 7300 (AKA UNIX PC) EMULATION

UNIX PC was AT&T’s computer with Unix System V based OS. It included special windowing system that ran only on UNIX PC’s hardware. Normal emulators such as 86box and PCem won’t be able to run UNIX PC software. But there is an emulator called “freebee” that will emulate UNIX PC. It’s not hard to get… Leer más »

Clone Linux user (copy user, based on another one)

It gets the source user’s groups (not including the group that’s the same as their login) and shell, then creates a new user with the same shell and secondary groups. There is no error checking, it’s just a quick and dirty clone script.

How to make a programme continue to run after log out from ssh?

Assuming that you have a program running in the foreground, press ctrl-Z, then: If there is only one job, then you don’t need to specify the job number. Just use disown -h and bg. Explanation of the above steps: You press ctrl-Z. The system suspends the running program, displays a job number and a «Stopped» message and returns you… Leer más »

Setting up Qemu with a tap interface

There are two parts to networking within QEMU: The virtual network device that is provided to the guest (e.g. a PCI network card). The network backend that interacts with the emulated NIC (e.g. puts packets onto the host’s network). Example: User mode network User mode networking allows the guest to connect back to the outside… Leer más »

Installing Windows XP on QEMU raspberry pi 4

In this article we will attempt install Windows XP on QEMU rpi4.  I use: Raspberry Pi 4 Raspbian 10 buster as host OS QEMU version 3.1.0 (Debian 1:3.1+dfsg-8+deb10u8) Windows XP SP2 ISO / CD Make Working Directory mkdir ~/qemu/winxp directory Create Disk qemu-img create -f raw winxp.img 10G Installation qemu-system-i386 -m 512 -hda winxp.img -cdrom winxpsp2.iso -boot… Leer más »