bugfix one example of 010-bash-conditionals (#159)

* bugfix conditionals

* bugfix modify symbol '-'

* bugfix modify ~/.bash_profile spelling

Author: nknanfeng

ebook/en/content/010-bash-conditionals.md

@@ -89,7 +89,7 @@ read -p "Enter your username? " username
 
 # Check if the username provided is the admin
 
-if [[ "${username}" != "${admin}" ]] || [[ $EUID != 0 ]] ; then
+if [[ "${username}" != "${admin}" ]] && [[ $EUID != 0 ]] ; then
     echo "You are not the admin or root user, but please be safe!"
 else
     echo "You are the admin user! This could be very destructive!"

ebook/en/content/011-bash-loops.md

@@ -135,7 +135,7 @@ The [n] argument is optional and can be greater than or equal to 1. When [n] is
 
 for i in 1 2 3 4 5
 do
-    if [[ $i –eq 2 ]] 
+    if [[ $i -eq 2 ]] 
     then
         echo "skipping number 2"
         continue
@@ -161,9 +161,9 @@ Example:
 #!/bin/bash
 
 num=1
-while [[ $num –lt 10 ]] 
+while [[ $num -lt 10 ]] 
 do
-    if [[ $num –eq 5 ]] 
+    if [[ $num -eq 5 ]] 
     then
         break
     fi
@@ -184,7 +184,7 @@ do
     echo "outer loop: $a"
     for (( b = 1; b < 100; b++ ))
     do
-        if [[ $b –gt 5 ]] 
+        if [[ $b -gt 5 ]] 
         then
             break 2
         fi

ebook/en/content/014-creating-custom-bash-commands.md

@@ -48,7 +48,7 @@ Now if you log out and log back in, your alias would be lost. In the next step y
 
 In order to make the change persistent, we need to add the `alias` command in our shell profile file. 
 
-By default on Ubuntu this would be the `~/.bashrc` file, for other operating systems this might be the `~/.bash_profle`. With your favorite text editor open the file:
+By default on Ubuntu this would be the `~/.bashrc` file, for other operating systems this might be the `~/.bash_profile`. With your favorite text editor open the file:
 
 ```bash
 nano ~/.bashrc