From 7533606302bc3d7feb9848316d2d3ce5ffbbefb3 Mon Sep 17 00:00:00 2001
From: Jeevitha Kannan K S <ksjeevithakannan123@gmail.com>
Date: Thu, 21 Nov 2024 08:39:13 +0530
Subject: [PATCH] Refactor utility functions

Separate utitility functions into user manager functions and monitor control functions, disable somechecks and formatting
---
 .../monitor-control/auto_detect_displays.sh   | 13 +++--
 .../monitor-control/change_orientation.sh     | 10 ++--
 .../utils/monitor-control/disable_monitor.sh  |  7 ++-
 .../monitor-control/duplicate_displays.sh     |  5 +-
 .../utils/monitor-control/enable_monitor.sh   |  7 ++-
 .../utils/monitor-control/extend_displays.sh  |  7 ++-
 .../monitor-control/manage_arrangement.sh     | 10 ++--
 .../monitor-control-functions.sh}             | 50 +++++--------------
 .../utils/monitor-control/reset_scaling.sh    |  5 +-
 .../utils/monitor-control/scale_monitor.sh    |  5 +-
 .../utils/monitor-control/set_brightness.sh   |  7 +--
 .../monitor-control/set_primary_monitor.sh    |  5 +-
 .../utils/monitor-control/set_resolutions.sh  | 13 +++--
 .../user-account-manager/add_to_group.sh      | 14 ++----
 .../utils/user-account-manager/add_user.sh    | 11 ++--
 .../user-account-manager/change_password.sh   | 15 +++---
 .../utils/user-account-manager/delete_user.sh | 15 +++---
 .../user-account-manager/remove_from_group.sh | 18 +++----
 .../user-manager-functions.sh                 | 31 ++++++++++++
 19 files changed, 122 insertions(+), 126 deletions(-)
 rename core/tabs/utils/{utility_functions.sh => monitor-control/monitor-control-functions.sh} (76%)
 create mode 100644 core/tabs/utils/user-account-manager/user-manager-functions.sh

diff --git a/core/tabs/utils/monitor-control/auto_detect_displays.sh b/core/tabs/utils/monitor-control/auto_detect_displays.sh
index 2613f99e7..3044f762b 100755
--- a/core/tabs/utils/monitor-control/auto_detect_displays.sh
+++ b/core/tabs/utils/monitor-control/auto_detect_displays.sh
@@ -1,14 +1,13 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to auto-detect displays and set common resolution
 auto_detect_displays() {
     if confirm_action "Auto-detect displays and set common resolution?"; then
         execute_command "xrandr --auto"
-        
+
         monitors=$(detect_connected_monitors)
         first_monitor=$(echo "$monitors" | head -n 1)
         common_resolutions=$(get_unique_resolutions "$first_monitor")
@@ -18,14 +17,14 @@ auto_detect_displays() {
             temp_common_resolutions=$(mktemp)
             temp_resolutions=$(mktemp)
 
-            printf "%b\n" "$common_resolutions" > "$temp_common_resolutions"
-            printf "%b\n" "$resolutions" > "$temp_resolutions"
+            printf "%b\n" "$common_resolutions" >"$temp_common_resolutions"
+            printf "%b\n" "$resolutions" >"$temp_resolutions"
 
             common_resolutions=$(comm -12 "$temp_common_resolutions" "$temp_resolutions")
 
             rm -f "$temp_common_resolutions" "$temp_resolutions"
         done
-        
+
         if [ -z "$common_resolutions" ]; then
             printf "%b\n" "${RED}No common resolution found among connected monitors.${RC}"
             return
diff --git a/core/tabs/utils/monitor-control/change_orientation.sh b/core/tabs/utils/monitor-control/change_orientation.sh
index 00ac1b95c..e38a9c09f 100755
--- a/core/tabs/utils/monitor-control/change_orientation.sh
+++ b/core/tabs/utils/monitor-control/change_orientation.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to change monitor orientation
 change_orientation() {
@@ -47,7 +46,10 @@ change_orientation() {
         2) orientation="left" ;;
         3) orientation="right" ;;
         4) orientation="inverted" ;;
-        *) printf "%b\n" "${RED}Invalid selection.${RC}"; return ;;
+        *)
+            printf "%b\n" "${RED}Invalid selection.${RC}"
+            return
+            ;;
     esac
 
     if confirm_action "Change orientation of $monitor_name to $orientation?"; then
diff --git a/core/tabs/utils/monitor-control/disable_monitor.sh b/core/tabs/utils/monitor-control/disable_monitor.sh
index 649d71a21..7085004cf 100755
--- a/core/tabs/utils/monitor-control/disable_monitor.sh
+++ b/core/tabs/utils/monitor-control/disable_monitor.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to disable a monitor
 disable_monitor() {
@@ -31,7 +30,7 @@ disable_monitor() {
     monitor_name=$(echo "$monitor_array" | cut -d' ' -f"$monitor_choice")
 
     printf "%b\n" "${RED}Warning: Disabling the monitor will turn it off and may affect your display setup.${RC}"
-    
+
     if confirm_action "Do you really want to disable ${GREEN}$monitor_name${RC}?"; then
         printf "%b\n" "${GREEN}Disabling $monitor_name${RC}"
         execute_command "xrandr --output $monitor_name --off"
diff --git a/core/tabs/utils/monitor-control/duplicate_displays.sh b/core/tabs/utils/monitor-control/duplicate_displays.sh
index 53aa260d3..3c48ab919 100755
--- a/core/tabs/utils/monitor-control/duplicate_displays.sh
+++ b/core/tabs/utils/monitor-control/duplicate_displays.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to duplicate displays
 duplicate_displays() {
diff --git a/core/tabs/utils/monitor-control/enable_monitor.sh b/core/tabs/utils/monitor-control/enable_monitor.sh
index ec4db8d6a..9d4c1b8b8 100755
--- a/core/tabs/utils/monitor-control/enable_monitor.sh
+++ b/core/tabs/utils/monitor-control/enable_monitor.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to enable a monitor
 enable_monitor() {
@@ -14,7 +13,7 @@ enable_monitor() {
     printf "%b\n" "${YELLOW}  Enable Monitor${RC}"
     printf "%b\n" "${YELLOW}=========================================${RC}"
     printf "%b\n" "${YELLOW}Choose a monitor to enable: ${RC}"
-    
+
     i=1
     for monitor in $monitor_array; do
         printf "%b\n" "$i. ${GREEN}$monitor${RC}"
diff --git a/core/tabs/utils/monitor-control/extend_displays.sh b/core/tabs/utils/monitor-control/extend_displays.sh
index ebe729f3e..a584c6eb3 100755
--- a/core/tabs/utils/monitor-control/extend_displays.sh
+++ b/core/tabs/utils/monitor-control/extend_displays.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to extend displays
 extend_displays() {
@@ -11,7 +10,7 @@ extend_displays() {
     i=1
     for monitor in $monitor_array; do
         if [ "$i" -gt 1 ]; then
-            prev_monitor=$(echo "$monitor_array" | cut -d' ' -f$((i-1)))
+            prev_monitor=$(echo "$monitor_array" | cut -d' ' -f$((i - 1)))
             if confirm_action "Extend $monitor to the right of $prev_monitor?"; then
                 printf "%b\n" "${GREEN}Extending $monitor to the right of $prev_monitor${RC}"
                 execute_command "xrandr --output $monitor --right-of $prev_monitor"
diff --git a/core/tabs/utils/monitor-control/manage_arrangement.sh b/core/tabs/utils/monitor-control/manage_arrangement.sh
index 5d73b1ff1..34be12257 100755
--- a/core/tabs/utils/monitor-control/manage_arrangement.sh
+++ b/core/tabs/utils/monitor-control/manage_arrangement.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to manage monitor arrangement
 manage_arrangement() {
@@ -45,7 +44,10 @@ manage_arrangement() {
         2) position="--right-of" ;;
         3) position="--above" ;;
         4) position="--below" ;;
-        *) printf "%b\n" "${RED}Invalid selection.${RC}"; return ;;
+        *)
+            printf "%b\n" "${RED}Invalid selection.${RC}"
+            return
+            ;;
     esac
 
     printf "%b\n" "${YELLOW}Choose the reference monitor:${RC}"
diff --git a/core/tabs/utils/utility_functions.sh b/core/tabs/utils/monitor-control/monitor-control-functions.sh
similarity index 76%
rename from core/tabs/utils/utility_functions.sh
rename to core/tabs/utils/monitor-control/monitor-control-functions.sh
index 09f33c60a..b4005e548 100755
--- a/core/tabs/utils/utility_functions.sh
+++ b/core/tabs/utils/monitor-control/monitor-control-functions.sh
@@ -10,7 +10,7 @@ setup_xrandr() {
             pacman)
                 "$ESCALATION_TOOL" "$PACKAGER" -S --noconfirm xorg-xrandr
                 ;;
-            apt-get|nala)
+            apt-get | nala)
                 "$ESCALATION_TOOL" "$PACKAGER" install -y x11-xserver-utils
                 ;;
             apk)
@@ -30,6 +30,7 @@ execute_command() {
     command="$1"
     printf "Executing: %s\n" "$command"
     eval "$command" 2>&1 | tee /tmp/xrandr.log | tail -n 20
+    #shellcheck disable=SC2181
     if [ $? -ne 0 ]; then
         printf "%b\n" "${RED}An error occurred while executing the command. Check /tmp/xrandr.log for details.${RC}"
     fi
@@ -52,25 +53,25 @@ get_unique_resolutions() {
     monitor="$1"
     xrandr_output=$(xrandr)
     available_resolutions=$(printf "%s" "$xrandr_output" | sed -n "/$monitor connected/,/^[^ ]/p" | grep -oP '\d+x\d+' | sort -u)
-    
+
     standard_resolutions="1920x1080 1280x720 1600x900 2560x1440 3840x2160"
-    
+
     temp_file=$(mktemp)
-    printf "%s" "$available_resolutions" > "$temp_file"
-    
+    printf "%s" "$available_resolutions" >"$temp_file"
+
     filtered_standard_resolutions=$(printf "%s" "$standard_resolutions" | tr ' ' '\n' | grep -xF -f "$temp_file")
-    
+
     rm "$temp_file"
-    
+
     available_res_file=$(mktemp)
     filtered_standard_res_file=$(mktemp)
-    printf "%s" "$available_resolutions" | sort > "$available_res_file"
-    printf "%s" "$filtered_standard_resolutions" | sort > "$filtered_standard_res_file"
-    
+    printf "%s" "$available_resolutions" | sort >"$available_res_file"
+    printf "%s" "$filtered_standard_resolutions" | sort >"$filtered_standard_res_file"
+
     remaining_resolutions=$(comm -23 "$available_res_file" "$filtered_standard_res_file")
-    
+
     rm "$available_res_file" "$filtered_standard_res_file"
-    
+
     printf "%b\n" "$filtered_standard_resolutions\n$remaining_resolutions" | head -n 10
 }
 
@@ -87,31 +88,6 @@ confirm_action() {
     fi
 }
 
-checkEmpty() {
-    if [ -z "$1" ]; then
-        printf "%b\n" "${RED}Empty value is not allowed${RC}" >&2
-        exit 1
-    fi
-}
-
-checkGroups() {
-    groups="$1"
-    available_groups="$2"
-    for group in $groups; do
-        if ! echo "$available_groups" | grep -q -w "$group"; then
-            return 1
-        fi
-    done
-    return 0
-}
-
-confirmAction() {
-    if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
-        printf "%b\n" "${RED}Cancelled operation...${RC}" >&2
-        exit 1
-    fi
-}
-
 checkEnv
 checkEscalationTool
 setup_xrandr
diff --git a/core/tabs/utils/monitor-control/reset_scaling.sh b/core/tabs/utils/monitor-control/reset_scaling.sh
index 63eac1d74..716c33788 100755
--- a/core/tabs/utils/monitor-control/reset_scaling.sh
+++ b/core/tabs/utils/monitor-control/reset_scaling.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to Reset scaling back to 1 (native resolution) for all monitors
 Reset_scaling() {
diff --git a/core/tabs/utils/monitor-control/scale_monitor.sh b/core/tabs/utils/monitor-control/scale_monitor.sh
index 1817f0f0a..215964eb6 100755
--- a/core/tabs/utils/monitor-control/scale_monitor.sh
+++ b/core/tabs/utils/monitor-control/scale_monitor.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to scale smaller monitors to the highest resolution of a bigger monitor
 scale_monitors() {
diff --git a/core/tabs/utils/monitor-control/set_brightness.sh b/core/tabs/utils/monitor-control/set_brightness.sh
index 0b7a2a838..b8ce99472 100755
--- a/core/tabs/utils/monitor-control/set_brightness.sh
+++ b/core/tabs/utils/monitor-control/set_brightness.sh
@@ -1,6 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to adjust brightness for a selected monitor
 adjust_monitor_brightness() {
@@ -29,7 +30,7 @@ adjust_monitor_brightness() {
         if ! echo "$monitor_choice" | grep -qE '^[0-9]+$'; then
             printf "%b\n" "${RED}Invalid selection. Please try again.${RC}"
             printf "Press [Enter] to continue..."
-            read -r dummy
+            read -r _
             continue
         fi
 
@@ -37,7 +38,7 @@ adjust_monitor_brightness() {
         if [ "$monitor_choice" -lt 1 ] || [ "$monitor_choice" -gt "$monitor_count" ]; then
             printf "%b\n" "${RED}Invalid selection. Please try again.${RC}"
             printf "Press [Enter] to continue..."
-            read -r dummy
+            read -r _
             continue
         fi
 
diff --git a/core/tabs/utils/monitor-control/set_primary_monitor.sh b/core/tabs/utils/monitor-control/set_primary_monitor.sh
index d38e6b0f4..fbd681c42 100755
--- a/core/tabs/utils/monitor-control/set_primary_monitor.sh
+++ b/core/tabs/utils/monitor-control/set_primary_monitor.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to set a monitor as primary
 set_primary_monitor() {
diff --git a/core/tabs/utils/monitor-control/set_resolutions.sh b/core/tabs/utils/monitor-control/set_resolutions.sh
index 84aea4d5a..596999446 100755
--- a/core/tabs/utils/monitor-control/set_resolutions.sh
+++ b/core/tabs/utils/monitor-control/set_resolutions.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../utility_functions.sh
-
-. ../../common-script.sh
+# shellcheck disable=SC1091
+. ./monitor-control-functions.sh
 
 # Function to set resolutions
 set_resolutions() {
@@ -33,7 +32,7 @@ set_resolutions() {
         if ! echo "$monitor_choice" | grep -qE '^[0-9]+$' || [ "$monitor_choice" -lt 1 ] || [ "$monitor_choice" -gt "$((i - 1))" ]; then
             printf "%b\n" "${RED}Invalid selection. Please try again.${RC}"
             printf "%b\n" "Press [Enter] to continue..."
-            read -r dummy
+            read -r _
             continue
         fi
 
@@ -41,13 +40,13 @@ set_resolutions() {
         resolutions=$(get_unique_resolutions "$monitor_name" | sort -rn -t'x' -k1,1 -k2,2)
 
         temp_res_file=$(mktemp)
-        printf "%b\n" "$resolutions" | awk '{print NR " " $0}' > "$temp_res_file"
+        printf "%b\n" "$resolutions" | awk '{print NR " " $0}' >"$temp_res_file"
 
         i=1
         while read -r resolution; do
-            echo "$resolution" >> "$temp_res_file"
+            echo "$resolution" >>"$temp_res_file"
             i=$((i + 1))
-        done < "$temp_res_file"
+        done <"$temp_res_file"
 
         clear
         printf "%b\n" "${YELLOW}=========================================${RC}"
diff --git a/core/tabs/utils/user-account-manager/add_to_group.sh b/core/tabs/utils/user-account-manager/add_to_group.sh
index 665cf72ac..4622997f2 100755
--- a/core/tabs/utils/user-account-manager/add_to_group.sh
+++ b/core/tabs/utils/user-account-manager/add_to_group.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../../common-script.sh
-
-. ../utility_functions.sh
+# shellcheck disable=SC1091
+. ./user-manager-functions.sh
 
 addToGroup() {
     clear
@@ -24,7 +23,7 @@ addToGroup() {
     printf "%b" "${YELLOW}Enter the groups you want to add user $username to (space-separated): ${RC}"
     read -r groups
 
-    checkEmpty "$groups" || exit 1
+    checkEmpty "$groups"
     if ! checkGroups "$groups" "$available_groups"; then
         printf "%b\n" "${RED}One or more groups are not available.${RC}"
         exit 1
@@ -34,14 +33,11 @@ addToGroup() {
 
     printf "%b" "${YELLOW}Are you sure you want to add user $username to $groups_to_add? [Y/n]: ${RC}"
     read -r confirm
-    confirmAction || exit 1
+    confirmAction "$confirm"
 
     "$ESCALATION_TOOL" usermod -aG "$groups_to_add" "$username"
 
     printf "%b\n" "${GREEN}User successfully added to the $groups_to_add${RC}"
 }
 
-checkEnv
-checkEscalationTool
-checkGroups
-addToGroup
\ No newline at end of file
+addToGroup
diff --git a/core/tabs/utils/user-account-manager/add_user.sh b/core/tabs/utils/user-account-manager/add_user.sh
index 26435f412..a1b3e62f1 100755
--- a/core/tabs/utils/user-account-manager/add_user.sh
+++ b/core/tabs/utils/user-account-manager/add_user.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../../common-script.sh
-
-. ../utility_functions.sh
+# shellcheck disable=SC1091
+. ./user-manager-functions.sh
 
 createUser() {
     clear
@@ -11,7 +10,9 @@ createUser() {
     printf "%b" "${YELLOW}Enter the username: ${RC}"
     read -r username
 
-    if ! echo "$username" | grep '^[a-zA-Z]*$' > /dev/null; then
+    checkEmpty "$username"
+
+    if ! echo "$username" | grep '^[a-zA-Z]*$' >/dev/null; then
         printf "%b\n" "${RED}Username must only contain letters and cannot contain spaces.${RC}"
         exit 1
     fi
@@ -33,6 +34,4 @@ createUser() {
     printf "%b\n" "${GREEN}To add additional groups use Add User To Groups${RC}"
 }
 
-checkEnv
-checkEscalationTool
 createUser
diff --git a/core/tabs/utils/user-account-manager/change_password.sh b/core/tabs/utils/user-account-manager/change_password.sh
index a909a5b2b..89960c012 100755
--- a/core/tabs/utils/user-account-manager/change_password.sh
+++ b/core/tabs/utils/user-account-manager/change_password.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../../common-script.sh
-
-. ../utility_functions.sh
+# shellcheck disable=SC1091
+. ./user-manager-functions.sh
 
 changePassword() {
     clear
@@ -12,13 +11,15 @@ changePassword() {
     printf "%b" "${YELLOW}Enter the username: ${RC}"
     read -r username
 
-    if id "$username" > /dev/null 2>&1; then
+    checkEmpty "$username"
+
+    if id "$username" >/dev/null 2>&1; then
         printf "%b" "${YELLOW}Enter new password: ${RC}"
         read -r password
 
         printf "%b" "${YELLOW}Are you sure you want to change password for ""$username""? [Y/n]: ${RC}"
         read -r confirm
-        confirmAction || exit 1
+        confirmAction "$confirm"
 
         echo "$username:$password" | "$ESCALATION_TOOL" chpasswd
         printf "%b\n" "${GREEN}Password changed successfully${RC}"
@@ -28,6 +29,4 @@ changePassword() {
     fi
 }
 
-checkEnv
-checkEscalationTool
-changePassword
\ No newline at end of file
+changePassword
diff --git a/core/tabs/utils/user-account-manager/delete_user.sh b/core/tabs/utils/user-account-manager/delete_user.sh
index aee9482e3..89c62a5e8 100755
--- a/core/tabs/utils/user-account-manager/delete_user.sh
+++ b/core/tabs/utils/user-account-manager/delete_user.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../../common-script.sh
-
-. ../utility_functions.sh
+# shellcheck disable=SC1091
+. ./user-manager-functions.sh
 
 deleteUser() {
     clear
@@ -12,10 +11,12 @@ deleteUser() {
     printf "%b" "${YELLOW}Enter the username: ${RC}"
     read -r username
 
-    if id "$username" > /dev/null 2>&1; then
+    checkEmpty "$username"
+
+    if id "$username" >/dev/null 2>&1; then
         printf "%b" "${YELLOW}Are you sure you want to delete user ""$username""? [Y/n]: ${RC}"
         read -r confirm
-        confirmAction || exit 1
+        confirmAction "$confirm"
 
         $ESCALATION_TOOL userdel --remove "$username" 2>/dev/null
         printf "%b\n" "${GREEN}User $username deleted successfully${RC}"
@@ -25,6 +26,4 @@ deleteUser() {
     fi
 }
 
-checkEnv
-checkEscalationTool
-deleteUser
\ No newline at end of file
+deleteUser
diff --git a/core/tabs/utils/user-account-manager/remove_from_group.sh b/core/tabs/utils/user-account-manager/remove_from_group.sh
index 23935b5e4..c8c84fa9d 100755
--- a/core/tabs/utils/user-account-manager/remove_from_group.sh
+++ b/core/tabs/utils/user-account-manager/remove_from_group.sh
@@ -1,8 +1,7 @@
 #!/bin/sh -e
 
-. ../../common-script.sh
-
-. ../utility_functions.sh
+# shellcheck disable=SC1091
+. ./user-manager-functions.sh
 
 removeFromGroup() {
     clear
@@ -12,7 +11,9 @@ removeFromGroup() {
     printf "%b" "${YELLOW}Enter the username: ${RC}"
     read -r username
 
-    if ! id "$username" > /dev/null 2>&1; then
+    checkEmpty "$username"
+
+    if ! id "$username" >/dev/null 2>&1; then
         printf "%b\n" "${RED}User $username does not exist.${RC}"
         exit 1
     fi
@@ -25,7 +26,7 @@ removeFromGroup() {
     printf "%b" "${YELLOW}Enter the groups you want to remove user $username from (space-separated): ${RC} "
     read -r groups
 
-    checkEmpty "$groups" || exit 1
+    checkEmpty "$groups"
     if ! checkGroups "$groups" "$user_groups"; then
         printf "%b\n" "${RED}One or more specified groups do not exist.${RC}"
         exit 1
@@ -35,13 +36,12 @@ removeFromGroup() {
 
     printf "%b" "${YELLOW}Are you sure you want to remove user $username from $groups_to_remove? [Y/n]: ${RC}"
     read -r confirm
-    confirmAction || exit 1
+    confirmAction "$confirm"
 
+    #shellcheck disable=SC2086
     $ESCALATION_TOOL usermod -rG $groups_to_remove "$username"
 
     printf "%b\n" "${GREEN}User successfully removed from $groups_to_remove${RC}"
 }
 
-checkEnv
-checkEscalationTool
-removeFromGroup
\ No newline at end of file
+removeFromGroup
diff --git a/core/tabs/utils/user-account-manager/user-manager-functions.sh b/core/tabs/utils/user-account-manager/user-manager-functions.sh
new file mode 100644
index 000000000..f9f4df40c
--- /dev/null
+++ b/core/tabs/utils/user-account-manager/user-manager-functions.sh
@@ -0,0 +1,31 @@
+#!/bin/sh -e
+
+. ../../common-script.sh
+
+checkGroups() {
+    groups="$1"
+    available_groups="$2"
+    for group in $groups; do
+        if ! echo "$available_groups" | grep -q -w "$group"; then
+            return 1
+        fi
+    done
+    return 0
+}
+
+confirmAction() {
+    confirm="$1"
+    if [ "$confirm" != "y" ] && [ "$confirm" != "Y" ]; then
+        printf "%b\n" "${RED}Cancelled operation...${RC}" >&2
+        exit 1
+    fi
+}
+
+checkEmpty() {
+    if [ -z "$1" ]; then
+        printf "%b\n" "${RED}Empty value is not allowed${RC}" >&2
+        exit 1
+    fi
+}
+
+checkEnv