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--- linux_notes [2023/01/03 21:17] – [tasks] raju
+++ linux_notes [2023/09/24 15:33] (current) – [what is my OS?] raju
@@ Line 3: / Line 3: @@
   * [[du on month end dates]]
   * [[change the default shell]]
-  * [[which shell am I using]]
+  * [[Which shell am I using | Which shell am I using?]]
+  * [[Difference between SHELL and 0 | What is the difference between \$SHELL and \$0?]]
+==== what is my OS? ====
+<code>
+awk -F= '$1=="ID" {print $2}' /etc/os-release
+</code>
+Sample run:
+<code>
+% cat /etc/os-release
+PRETTY_NAME="Debian GNU/Linux 12 (bookworm)"
+NAME="Debian GNU/Linux"
+VERSION_ID="12"
+VERSION="12 (bookworm)"
+VERSION_CODENAME=bookworm
+ID=debian
+HOME_URL="https://www.debian.org/"
+SUPPORT_URL="https://www.debian.org/support"
+BUG_REPORT_URL="https://bugs.debian.org/"
+</code>
+<code>
+% awk -F= '$1=="ID" {print $2}' /etc/os-release
+debian
+</code>
+Ref:
+  * I came across it in https://github.com/trimclain/.dotfiles/blob/main/Makefile
 ==== last reboot times ====