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installer.sh

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+#!/bin/bash
+#author : Amirreza Firooz
+#installer of wttr
+clear
+echo -e "******************************\nWelcome to installer of wttr \n *************************** \n Installing ..."
+sudo cp -R "wttr" /usr/bin
+ st_0=$?
+cd /usr/bin
+echo -e "******************************\n Giving permission ..."
+sudo chmod +x wttr
+ st_1=$?
+if [ $st_0 == 0 ] && [ $st_1 == 0 ];then
+    echo -e "\n********* Congratulations!!! installation has just completed *********\n"
+    wttr -h
+else
+    echo -e "\n There were some problems while installing :(\n Installation failed :( "
+fi 

wttr

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+#!/bin/bash
+#Author : Amirreza Firoozi
+#name : wttr
+
+wttr_ver="1.2" #define script version
+if [ -f "$HOME/.wttr/default.txt" ];then #check if user set default city or not . if user did load it to variable def
+   cd $HOME/.wttr
+ def=$(cat default.txt) 
+
+elif [ ! -d $HOME/.wttr ];then #if he/she didn`t make a blank file
+     mkdir ".wttr"
+    echo "" > default.txt 
+    def=""
+fi
+if [ "$#" == "0" ] && [ "$def" == "" ];then
+    echo -e "You have not entered any parameters \n Needs help? try wttr -h"
+elif [ "$#" -gt "2" ];then
+
+    echo -e "too many parameters. \n Needs help? try wttr -h"
+ else
+  case $1 in 
+    "-h") #showing help
+        echo -e "\n This is a simple app to check weather condition.\n wttr is under GPL3 License. source is available on Github : https://Github.com/AmirrezaFiroozi/wttr  \n Created by : Amirreza Firoozi \n Thanks to : Jadi & Alireza Amirsamimi & Mostafa Asadi \n Write wttr {your city name} to check the  weather condition of your city. example : wttr fasa \n -m for photo of moon \n -h for some help (this page) \n -v for script version \n -i to install curl which is necessary for script to run correctly\n -rm to remove the script :( \n -sdef to define a city as your default city \n Any bugs? Any suggestions? Contact us : firoozi128.af&gmail.com " 
+    ;;
+    "-v")
+        echo -e " wttr_VERSION is : "$wttr_ver" "
+    ;;
+    "-m")
+        curl http://wttr.in/moon
+    ;;
+    "-i")
+    sudo apt install curl
+    ;;
+    "-rm") 
+    read -p "Do you Really want to remove wttr?(y/n)" response
+    if [ "$response" == "y" ];then
+         cd /usr/bin
+        sudo rm -R "wttr"
+        if [ -d "$HOME/.wttr" ];then
+        sudo rm -d "$HOME/.wttr"
+        fi
+        echo -e "Script has deleted :("
+    else
+        echo -e "Opration canceled"
+    fi
+    ;;
+    "-sdef") # set the default city
+   if [ ! -d $HOME/.wttr ];then
+         cd $HOME
+          mkdir ".wttr" 
+     fi    
+     if [ "$#" == "2" ];then
+ 	 cd $HOME/.wttr
+        echo "$2" > default.txt
+     else
+    read -p " Enter your city name to set as the default city (example : fasa) : " def
+        if [ "$def" == "" ] && [ "$#" -ls "2" ];then
+    echo "you did NOT enter anything ..."
+    else
+        cd $HOME/.wttr
+        echo $def > default.txt
+     fi
+     fi #end of the second if
+	 echo -e "\n Congratulations!! we set $def as your default city. You can check its weather condition by typing only wttr Since now :)" 
+    ;;
+    "")
+        cd $HOME
+        curl http://wttr.in/"$def"
+    ;;
+    *)
+
+    curl http://wttr.in/"$1"
+
+    ;;
+  esac
+fi
+
+
+