Add support for changing login shells between ZSH and BASH (#50)

* Add support for changing login shells between ZSH and BASH

* Added system helper file move update_skel and qr_code from PR #49

---------

Co-authored-by: Tearran <tearran@gmail.com>

README.md

@@ -1,6 +1,6 @@
 
 # Armbian Configuration Utility
-Updated: Thu Aug 29 11:45:21 AM UTC 2024
+Updated: Sun Sep  1 03:03:48 PM EDT 2024
 
 Utility for configuring your board, adjusting services, and installing applications. It comes with Armbian by default.
 
@@ -15,6 +15,9 @@ sudo armbian-config
   - **S03** - Edit the boot environment
   - **S04** - Install Linux headers
   - **S05** - Remove Linux headers
+  - **S06** - Install to internal storage
+  - **S30** - Change shell system wide to BASH
+  - **S31** - Change shell system wide to ZSH
 
 
 - ## **Network** 
@@ -88,6 +91,9 @@ Usage:  armbian-configng [option] [arguments]
     --cli S03  -  Edit the boot environment
     --cli S04  -  Install Linux headers
     --cli S05  -  Remove Linux headers
+    --cli S06  -  Install to internal storage
+    --cli S30  -  Change shell system wide to BASH
+    --cli S31  -  Change shell system wide to ZSH
     --cli N00  -  Install Bluetooth support
     --cli N01  -  Remove Bluetooth support
     --cli N02  -  Bluetooth Discover
@@ -194,6 +200,46 @@ Jobs:
 Headers_remove
 ~~~
 
+### S06
+
+Install to internal storage
+
+Jobs:
+
+~~~
+armbian-install
+~~~
+
+### S30
+
+Change shell system wide to BASH
+
+Jobs:
+
+~~~
+export BASHLOCATION=$(grep /bash$ /etc/shells | tail -1)
+sed -i "s|^SHELL=.*|SHELL=${BASHLOCATION}|" /etc/default/useradd
+sed -i "s|^DSHELL=.*|DSHELL=${BASHLOCATION}|" /etc/adduser.conf
+debconf-apt-progress -- apt-get -y purge armbian-zsh
+update_skel
+awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534 || $3 == 0) print $1}' /etc/passwd | xargs -L1 chsh -s $(grep /bash$ /etc/shells | tail -1)
+~~~
+
+### S31
+
+Change shell system wide to ZSH
+
+Jobs:
+
+~~~
+export ZSHLOCATION=$(grep /zsh$ /etc/shells | tail -1)
+sed -i "s|^SHELL=.*|SHELL=${ZSHLOCATION}|" /etc/default/useradd
+sed -i "s|^DSHELL=.*|DSHELL=${ZSHLOCATION}|" /etc/adduser.conf
+debconf-apt-progress -- apt-get -y install armbian-zsh
+update_skel
+awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534 || $3 == 0) print $1}' /etc/passwd | xargs -L1 chsh -s $(grep /zsh$ /etc/shells | tail -1)
+~~~
+
 ### N00
 
 Install Bluetooth support
@@ -447,6 +493,7 @@ These helper functions facilitate various operations related to job management,
 | Display a Yes/No dialog box and process continue/exit | get_user_continue 'Do you wish to continue?' process_input | Joey Turner 
 | Display a message box | show_message <<< 'hello world'  | Joey Turner 
 | Migrated procedures from Armbian config. | connect_bt_interface | Igor Pecovnik 
+| Show or generate QR code for Google OTP | qr_code generate | Igor Pecovnik 
 | Freeze/unhold Migrated procedures from Armbian config. | set_safe_boot unhold or set_safe_boot freeze | Igor Pecovnik 
 | Check if kernel headers are installed | are_headers_installed | Gunjan Gupta 
 | Check when apt list was last updated | see_current_apt | Joey Turner 
@@ -472,6 +519,7 @@ These helper functions facilitate various operations related to job management,
 | Parse json to get list of desired menu or submenu items | parse_menu_items 'menu_options_array' | Gunjan Gupta 
 | Show the usage of the functions. | see_use | Joey Turner 
 | Check the internet connection with fallback DNS | see_ping | Joey Turner 
+| Update the /etc/skel files in users directories | update_skel | Igor Pecovnik 
 | Secure version of get_user_continue | get_user_continue_secure 'Do you wish to continue?' process_input | Joey Turner 
 
 

bin/armbian-configng

@@ -36,13 +36,15 @@ declare -A module_options
 #
 # Load configng core functions and module options array
 
-source "$lib_dir/config.ng.functions.sh" 
+source "$lib_dir/config.ng.functions.sh"  
 set_runtime_variables
 echo "Loaded Runtime variables..." #| show_infobox ;
 #set_newt_colors 2
 echo "Loaded Dialog..." #| show_infobox ;
 source "$lib_dir/config.ng.docs.sh"
 echo "Loaded Docs..." #| show_infobox ;
+source "$lib_dir/config.ng.system.sh"
+echo "Loaded System helpers..." #| show_infobox ;
 source "$lib_dir/config.ng.network.sh"
 echo "Loaded Network helpers..." #| show_infobox ;
 

lib/armbian-configng/config.ng.jobs.json

@@ -75,8 +75,41 @@
                     "src_reference": "",
                     "author": "https://github.com/igorpecovnik",
                     "condition": "[[ -n $(ls /sbin/armbian-install) ]]"
+                },
+                {
+                    "id": "S30",
+                    "description": "Change shell system wide to BASH",
+                    "command": [
+                        "export BASHLOCATION=$(grep /bash$ /etc/shells | tail -1)",
+                        "sed -i \"s|^SHELL=.*|SHELL=${BASHLOCATION}|\" /etc/default/useradd",
+                        "sed -i \"s|^DSHELL=.*|DSHELL=${BASHLOCATION}|\" /etc/adduser.conf",
+                        "debconf-apt-progress -- apt-get -y purge armbian-zsh",
+                        "update_skel",
+                        "awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534 || $3 == 0) print $1}' /etc/passwd | xargs -L1 chsh -s $(grep /bash$ /etc/shells | tail -1)"
+                    ],
+                    "status": "Pending Review",
+                    "doc_link": "",
+                    "src_reference": "",
+                    "author": "https://github.com/igorpecovnik",
+                    "condition": "[[ $(cat /etc/passwd | grep \"^root:\" | rev | cut -d\":\" -f1 | cut -d\"/\" -f1| rev) == \"zsh\" ]]"
+                },
+                {
+                    "id": "S31",
+                    "description": "Change shell system wide to ZSH",
+                    "command": [
+                        "export ZSHLOCATION=$(grep /zsh$ /etc/shells | tail -1)",
+                        "sed -i \"s|^SHELL=.*|SHELL=${ZSHLOCATION}|\" /etc/default/useradd",
+                        "sed -i \"s|^DSHELL=.*|DSHELL=${ZSHLOCATION}|\" /etc/adduser.conf",
+                        "debconf-apt-progress -- apt-get -y install armbian-zsh",
+                        "update_skel",
+                        "awk -F'[/:]' '{if ($3 >= 1000 && $3 != 65534 || $3 == 0) print $1}' /etc/passwd | xargs -L1 chsh -s $(grep /zsh$ /etc/shells | tail -1)"
+                    ],
+                    "status": "Pending Review",
+                    "doc_link": "",
+                    "src_reference": "",
+                    "author": "https://github.com/igorpecovnik",
+                    "condition": "[[ $(cat /etc/passwd | grep \"^root:\" | rev | cut -d\":\" -f1 | cut -d\"/\" -f1| rev) == \"bash\" ]]"
                 }
-
             ]
         },
         {

lib/armbian-configng/config.ng.system.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+
+
+module_options+=(
+["update_skel,author"]="Igor Pecovnik"
+["update_skel,ref_link"]=""
+["update_skel,feature"]="update_skel"
+["update_skel,desc"]="Update the /etc/skel files in users directories"
+["update_skel,example"]="update_skel"
+["update_skel,status"]="Active"
+)
+#
+# check dpkg status of $1 -- currently only 'not installed at all' case caught
+#
+function update_skel (){
+
+	getent passwd |
+	while IFS=: read -r username x uid gid gecos home shell
+	do
+	if [ ! -d "$home" ] || [ "$username" == 'root' ] || [ "$uid" -lt 1000 ]
+	then
+		continue
+	fi
+        tar -C /etc/skel/ -cf - . | su - "$username" -c "tar --skip-old-files -xf -"
+	done
+
+}
+
+
+module_options+=(
+["qr_code,author"]="Igor Pecovnik"
+["qr_code,ref_link"]=""
+["qr_code,feature"]="qr_code"
+["qr_code,desc"]="Show or generate QR code for Google OTP"
+["qr_code,example"]="qr_code generate"
+["qr_code,status"]="Active"
+)
+#
+# check dpkg status of $1 -- currently only 'not installed at all' case caught
+#
+function qr_code (){
+
+	clear
+	if [[ "$1" == "generate" ]]; then
+		google-authenticator -t -d -f -r 3 -R 30 -W -q
+		cp /root/.google_authenticator /etc/skel
+		update_skel
+	fi
+	export TOP_SECRET=$(head -1 /root/.google_authenticator)
+	qrencode -m 2 -d 9 -8 -t ANSI256 "otpauth://totp/test?secret=$TOP_SECRET"
+	echo -e '\nScan QR code with your OTP application on mobile phone\n'
+	read -n 1 -s -r -p "Press any key to continue"
+
+}