suedit plugin (#359)

plugins/README.md

@@ -38,6 +38,7 @@ The currently available plugins are listed below.
 | readit | sh | pdftotext, mpv,<br>pico2wave | Read a PDF or text file aloud |
 | ringtone | sh | date, ffmpeg | Create a variable bitrate mp3 ringtone from file |
 | splitjoin | sh | split, cat | Split file or join selection |
+| suedit | sh | sudoedit/sudo/doas | Edit file using superuser permissions |
 | sxiv | sh | sxiv | View images in dir, set wallpaper, copy path ([config](https://wiki.archlinux.org/index.php/Sxiv#Assigning_keyboard_shortcuts))|
 | thumb | sh | [lsix](https://github.com/hackerb9/lsix) | View thumbnail of an image or dir of images |
 | transfer | sh | curl | Upload file to transfer.sh |

plugins/suedit

@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+
+# Description: Edit file as superuser
+#
+# Shell: POSIX compliant
+# Author: Anna Arad
+
+EDITOR="${EDITOR:-vim}"
+
+is_cmd_exists () {
+    which "$1" > /dev/null 2>&1
+    echo $?
+}
+
+if [ "$(is_cmd_exists sudoedit)" -eq "0" ]; then
+    sudoedit "$1"
+elif [ "$(is_cmd_exists sudo)" -eq "0" ]; then
+    sudo "$EDITOR" "$1"
+elif [ "$(is_cmd_exists doas)" -eq "0" ]; then
+    doas "$EDITOR" "$1"
+fi