Editing Linux Commands On Pi

= Make Sure You are Up to Date =

<pre>

# remember to use >>
sudo apt-get update

sudo apt-get upgrade 

sudo raspi-config     # still works as alternative to command line 

</pre>

= Software install =

Use the gui app or at command line

* apt-get
* pip

= Misc Commands =


*     ~  home directory
*     ./ current directory
*     ../ parent directory

* ls         list files, but may miss hidden ones then ???
* cd

* chmod
* ps   -e       what is running ( -e all users??  without just current )

* top           info on running processes in a nano like window exit with ctrl c
* kill          end a process using pid from above 

* rm – Remove Files
* rmdir – Remove Directories

* trash from command line not so easy may be hidden /home/pi/.local/share/Trash  may be a hint.

= File Related =

== Editing ==
* editing in gui leafpad file_name, or if protected sudo leafpad file_name
* editing with no gui use nano same as above but a bit clunky, ctrl prefix to commands

== Config Files ==

=== interfaces === 

<pre>

#  sudo leafpad  /etc/network/interfaces

</pre>

=== for Keyboard ===

<pre>
#  sudo leafpad  /etc/default/keyboard	

XKBLAYOUT="us"
</pre>

== for WiFi wpa_supplicant.conf == 

<pre>

# for info
sudo iwlist wlan0 scan

</pre>

Go to the bottom of the file and add the following:

<pre>
#  sudo leafpad /etc/wpa_supplicant/wpa_supplicant.conf
# at bottom of file
# ok to have 2

network={
    ssid="The_ESSID_from_earlier"
    psk="Your_wifi_password"

network={
    ssid="The_ESSID_from_earlier"
    psk="Your_wifi_password"
}

</pre>



[[Category:Arduino/RaspberryPi]]
@@ Line 29: / Line 29: @@
 * cd
-* chmod   +x  filename       +x  make executable
+* chmod
 * ps   -e       what is running ( -e all users??  without just current )
@@ Line 35: / Line 35: @@
 * kill          end a process using pid from above
+* rm – Remove Files
-cp                 copy files
-== Directories ==
-* mkdir            make directory
 * rmdir – Remove Directories
-== Files ==
-* rm – Remove Files
-* mv – Move Files
 * trash from command line not so easy may be hidden /home/pi/.local/share/Trash  may be a hint.
-== Note ==
-<pre>
-mc – A Full File Manager
-Midnight Commander is one of many fully featured file managers you can use from the Linux terminal. It isn’t installed by default on most distributions; here’s the command you’ll need to install it on Ubuntu:
-sudo apt-get install mc
-</pre>
 = File Related =