What is the difference between "." "./" and "source"? [duplicate]
Sep 27, 2016 · When the script is done, any changes that it made to the environment are discarded. . script The above sources the script. It is as if the commands had been typed in directly. Any …
How can I temporarily set $PATH and . (source) a file?
Dec 24, 2023 · Consider this. IFS is set only in the execution of read. IFS='' read -r REPLY However, if I do similar with . (source), the variable will be assigned and changed even after the execution of the li...
Why can `BASH_SOURCE` be used to obtain the current directory of the ...
Jul 30, 2020 · I've read that BASH_SOURCE should be populated with the name of the executing script (and it works!). But why does BASH_SOURCE hold the name of the executing script, when it is …
How to list packages that have been installed from source in Linux ...
Oct 9, 2023 · 1 I usually use package managers like apt to install packages and then use dpkg to list the packages, that I have installed. Is there any way to get a similar list if I install from source? I saw an …
Copy file to same path as source without changing directories
Aug 7, 2022 · For example if you started typing or copy/pasting the source path including filename, and only after that you realize you want the copy to be in that directory, ctrl-left-arrow to move the cursor …
Whitelist port from specific source IP and destination IP
Sep 20, 2021 · I am looking to whitelist port 22, but only for specific source and destination IP addresses. I am aware of how to do this using iptables for a specific source IP: iptables -A INPUT -p …
How can I source a bash script containing BASH_SOURCE from zsh
Nov 1, 2018 · I need to source it from a zsh shell as I need to have all the environment variables it defines. , where it is the Bash script. The fact that the script uses BASH_SOURCE is actually …
100% open source linux distro - Unix & Linux Stack Exchange
Feb 23, 2014 · Do 100% open source linux distro's exist? i.e. distros which contain absolutely no closed source components anywhere at all? Apparently distros like Ubuntu contains bits and pieces which …
Is there an open source tool to measure cpu performance?
I have used many times ab for measuring web performance, hdparm for measuring hard disk performance and netperf for measuring network performance. But I didn't find any tools to measure …
How to compile and install programs from source
That being said... +1 bump for asking a common question that should be answered for all newcomers to *nix systems. :) Building from source sometimes means the difference between fixing a nasty bug …