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--- 42_most_useful_raspberry_pi_commands [2016/08/08 21:41] – created walkeradmin
+++ 42_most_useful_raspberry_pi_commands [2016/08/08 21:48] (current) – walkeradmin
@@ Line 11: / Line 11: @@
     ◦clear: Clears the terminal screen of previously run commands and text.
     ◦date: Prints the current date.
-    ◦find / -name example.txt: Searches the whole system for the file example.txt and outputs a list of all     directories that contain the file.
+    ◦find / -name example.txt: Searches the whole system for the file example.txt and outputs a list of all
+        directories that contain the file.
     ◦nano example.txt: Opens the file example.txt in “Nano”, the Linux text editor.
     ◦poweroff: To shutdown immediately.
@@ Line 22: / Line 23: @@
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     File/Directory Commands
     ◦cat example.txt: Displays the contents of the file example.txt.
     ◦cd /abc/xyz: Changes the current directory to the /abc/xyz directory.
-    ◦cp XXX: Copies the file or directory XXX and pastes it to a specified location; i.e. cp examplefile.txt /home/pi/office/ copies examplefile.txt in the current directory and pastes it into the /home/pi/ directory. If the file is not in the current directory, add the path of the file’s location (i.e. cp /home/pi/documents/examplefile.txt /home/pi/office/ copies the file from the documents directory to the office directory).
+    ◦cp XXX: Copies the file or directory XXX and pastes it to a specified location;
+        i.e. cp  examplefile.txt /home/pi/office/ copies examplefile.txt in the current directory and pastes
+        it into the /home/pi/ directory. If the file is not in the current directory, add the path of
+        the file’s location (i.e. cp /home/pi/documents/examplefile.txt /home/pi/office/ copies the
+        file from the documents directory to the office directory).
     ◦ls -l: Lists files in the current directory, along with file size, date modified, and permissions.
     ◦mkdir example_directory: Creates a new directory named example_directory inside the current directory.
-    ◦mv XXX: Moves the file or directory named XXX to a specified location. For example, mv      examplefile.txt /home/pi/office/ moves examplefile.txt in the current directory to the /home/pi/office directory. If the file is not in the current directory, add the path of the file’s location (i.e. cp /home/pi/documents/examplefile.txt /home/pi/office/ moves the file from the documents directory to the office directory). This command can also be used to rename files (but only within the same directory). For example, mv examplefile.txt newfile.txt renames examplefile.txt to newfile.txt, and keeps it in the same directory.
+    ◦mv XXX: Moves the file or directory named XXX to a specified location. For example, mvexamplefile.txt
+     /home/pi/office/ moves examplefile.txt in the current directory to the /home/pi/office directory.
+     If the file is not in the current directory, add the path of the file’s location(i.e.
+     cp /home/pi/documents/examplefile.txt /home/pi/office/ moves the file from the documents directory
+     to the office directory). This command can also be used to rename files (but only within the same directory).
+     For example, mv examplefile.txt newfile.txt renames examplefile.txt to newfile.txt, and keeps
+     it in the same directory.
     ◦rm example.txt: Deletes the file example.txt.
     ◦rmdir example_directory: Deletes the directory example_directory (only if it is empty).
-    ◦scp user@10.0.0.32:/some/path/file.txt: Copies a file over SSH. Can be used to download a file from a desktop/laptop to the Raspberry Pi. user@10.0.0.32 is the username and local IP address of the desktop/laptop and /some/path/file.txt is the path and file name of the file on the desktop/laptop.
+    ◦scp user@10.0.0.32:/some/path/file.txt: Copies a file over SSH. Can be used to download a file
+    from a desktop/laptop to the Raspberry Pi. user@10.0.0.32 is the username and local IP address
+    of the desktop/laptop and /some/path/file.txt is the path and file name of the file on the
+    desktop/laptop.
     ◦touch: Creates a new, empty file in the current directory.
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     Networking/Internet Commands
-    ◦ifconfig: To check the status of the wireless connection you are using  (to see if wlan0 has acquired an IP address).
+    ◦ifconfig: To check the status of the wireless connection you are using  (to see if wlan0 has
+    acquired an IP address).
     ◦iwconfig: To check which network the wireless adapter is using.
     ◦iwlist wlan0 scan: Prints a list of the currently available wireless networks.
-    ◦iwlist wlan0 scan | grep ESSID: Use grep along with the name of a field to list only the fields you need (for example to just list the ESSIDs).
+    ◦iwlist wlan0 scan | grep ESSID: Use grep along with the name of a field to list only the
-    ◦nmap: Scans your network and lists connected devices, port number, protocol, state (open or closed) operating system, MAC addresses, and other information.
+    fields you need (for example to just list the ESSIDs).
-    ◦ping: Tests connectivity between two devices connected on a network. For example, ping 10.0.0.32 will send a packet to the device at IP 10.0.0.32 and wait for a response. It also works with website addresses.
-    ◦wget http://www.website.com/example.txt: Downloads the file example.txt from the web and saves it to the current directory.
+    ◦nmap: Scans your network and lists connected devices, port number, protocol, state
+    (open or closed) operating system, MAC addresses, and other information.
+    ◦ping: Tests connectivity between two devices connected on a network. For example,
+    ping 10.0.0.32 will send a packet to the device at IP 10.0.0.32 and wait for a response.
+    It also works with website addresses.
+    ◦wget http://www.website.com/example.txt: Downloads the file example.txt from the web and
+    saves it to the current directory.
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     System Information Commands
     ◦cat /proc/meminfo: Shows details about your memory.
     ◦cat /proc/partitions: Shows the size and number of partitions on your SD card or hard drive.
@@ Line 55: / Line 85: @@
     ◦hostname -I: Shows the IP address of your Raspberry Pi.
     ◦lsusb: Lists USB hardware connected to your Raspberry Pi.
-    ◦UP key: Pressing the UP key will enter the last command entered into the command prompt. This is a quick way to correct commands that were made in error.
+    ◦UP key: Pressing the UP key will enter the last command entered into the command prompt.
+        This is a quick way to correct commands that were made in error.
     ◦vcgencmd measure_temp: Shows the temperature of the CPU.
     ◦vcgencmd get_mem arm && vcgencmd get_mem gpu: Shows the memory split between the CPU and GPU.
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