bliiir · February 11, 2026 05:36 · Sep 6, 2019 · Nov 20, 2018 · Nov 20, 2018 · Nov 20, 2018
diff --git a/cli.md b/cli.md
@@ -1,45 +1,118 @@
-# Command Line Interface
+# Command Line cheatsheet
 
 ## Commands
 
 [Cheat Sheets](https://github.com/WebDevStudios/CLI-Cheat-Sheet)
 
+### Navigate
 | Command | meaning | example |
 | :--- | :--- | :--- |
-| man <command> | View the manual for given command| |
 | `pwd` | Print work directory | |
 | `ls` | list files in current directory | |
 | `ls -a` | List all files, including hidden files | |
-| `ls -l` | List files in current directory AS a list | |
+| `ls -l` | List files in current directory as a list | |
+| `ls -la` | List all files in current directory as a list | |
 | `cd /` | Change directory to root | |
 | `cd ~` | Change directory to home | |
+| `cd -` | go back to the most recent dir you've been in | |
+| `history` | display past commands | |
+
+### Files management
+| Command | meaning | example |
+| :--- | :--- | :--- |
 | `cp [origin] [destination]` | copy | cp text.txt . | |
+| `mv [origin] [destination]` | move (and rename) | cp text.txt . | |
+| `rm -rf folder_or_filename` | remove folder_filename forcefully recursively |
+| `defaults write com.apple.finder AppleShowAllFiles TRUE` | Shows hidden files in Finder |
+| `which python3` | Shows you where the python command is located | |
+| `python -V` or python --version | Shows you the version of Python ||
+
+### Files editing
+| `touch scriptname.sh` | create shell script scriptname.sh | |
 | `echo "hello" > file.txt` | print "hello" to file.txt | |
-| `say "hello"` | Use the voice module to read the string "hello"| |
-| `cat filename` | print filenamem | |
+| `cat filename` | display contents of <filename> in terminal| |
 | `head filename` | print first x lines of filename | |
 | `tail filename` | print last x line of filename | |
+| `tail -f your.log` | Open a live version of the file your.log in the terminal
 | `history > file1.txt` | replace contents of file1.txt with history | |
 | `history >> file1.txt` | append contents of file1.txt with history | |
 | `history \ grep "git" > file1.txt` | Find the word "git" in my history and replace the content of file1.txt with the result| |
+
+
+### Find
+| Command | meaning | example |
+| :--- | :--- | :--- |
 | `find . -name "file*"` | find files and folders with the characters "file" AS part of the name | |
-| `cd -` | go back to the most recent dir you've been in | |
-| `chmod ----------` | change permissions | |
-| `which python3` | Shows you where the python command is located | |
-| `rm -rf folder_or_filename` | remove folder_filename forcefully recursively | |
-| `history` | display past commands ||
-| `touch scriptname.sh` | create shell script scriptname.sh | |
+| `find / -name "postgresql.conf"` | find the file 'postgresql.conf' recursively from the root folder |
+
+
+
+### Task management
+| Command | meaning | example |
+| :--- | :--- | :--- |
 | `lsof -i tcp:8000` | List open files on tcp port 8000 | |
 | `kill -9 pid` | kills the process with the pid | |
-| `lsof -t -i tcp:8000 | xargs kill -9` | kill all processes on port 8000|
+| `lsof -t -i tcp:8000 \| xargs kill -9` | kill all processes on port 8000|
+| `killall Finder` | Restarts the Mac Finder program |
+| `ps aux` | report a snapshot of the current processes. a = show processes for all users, u = display the process's user/owner, x = also show processes not attached to a terminal |
+| `top` | Show all the running processes within your Linux environment |
+
+
+### Permissions
+| Command | meaning | example |
+| :--- | :--- | :--- |
+| `chmod 124 filename.ext` | change permissions  - owner, user, guest| |
+
+
+### User
+| `echo $USER` | print the username to the console |
+| `whoami` | Shows your user |
+| `sudo su` | Change to root user |
+
+
+### Update
+| Command | Description|
+| :--- | :--- |
+| `sudo apt update` | Fetches the list of available updates |
+| `sudo apt upgrade` | Installs some updates; does not remove packages |
+| `sudo apt full-upgrade` | Installs updates; may also remove some packages, it needed |
+| `sudo apt autoremove` | Removes any old packages that are no longer needed |
+| `reboot` | Reboot computer |
+
+
+### Background tasks
+|Commmand|Description|
+|:--|:--|
+| `python3 script.py &` | Run python script in the background |
+| `nohup python3 script.py &`| Run python script in the background and detach from session |
+
+
+### Postgres
+|Commmand|Description|
+|:--|:--|
+| `sudo service postgresql stop` | Stop postgres database |
+| `sudo service postgresql start` | Star postgres database |
+
+
+
+### Networking
+| Command | Description |
+| :--- | :--- |
+| `curl ifconfig.me` | Get own ip number |
+| `curl https://freegeoip.app/xml/143.204.247.98` | Get the geolocation of an ip number using the [freegeoip](https://freegeoip.app/) service |
+| `curl https://freegeoip.app/xml/bitmex.com` | Get the geolocation of an ip number |
+| `dig 143.204.247.98` | DNS lookup utility |
+| `dig bitmex.com` | DNS lookup utility |
+| `traceroute 143.204.247.98` | print the route packets take to network host |
+| `traceroute bitmex.com` | print the route packets take to network host |
+
 
 #### CLI options
 | option | Effect     |
 | :--- | :--- |
 | `-r` | recursively |
 | `-m` | message |
 
-
 ## Customization
 
 Change `~/.bash_profile`, `.profile` or `~/.zscrc` to set custom command aliases
@@ -48,7 +121,6 @@ Change `~/.bash_profile`, `.profile` or `~/.zscrc` to set custom command aliases
 | :--- | :--- | :-- |
 | `zshcf` | vim ~/.zshrc | Edit zsh profile settings|
 
-
 #### Permissions
 
 drwxr
@@ -62,10 +134,11 @@ rwx = Read Write Execute
 | 1 | 421 | 421 | 421 |
 
 ##### Examples
-```py
+```
 chmod 777 = read(4), write(2) and execute(1) right for owner(4), group(2) and user(1)
 chmod 777  = give owner, group and user read, write and execute rights
 chmod 444 = give owner, group and user read access
+chmod 400 = give owner read access and all others no rights
 ```
 
 ### Shell Scripting
@@ -80,4 +153,4 @@ echo "adding to virus..."
 find /Users/vkng/Dropbox/99_code/Python/CodingNomads -name "*week*" >> ~/Desktop/virus
 open ~/Desktop/virus
 ```
-```#!/bin/bash/``` is called the shbang
+```#!/bin/bash/``` is called the shbang
diff --git a/cli.md b/cli.md
@@ -1,4 +1,4 @@
-# Command Line Interface
+# Command Line Interface
 
 ## Commands
 

diff --git a/cli.md b/cli.md
@@ -1,4 +1,4 @@
-# Command Line
+# Command Line Interface
 
 ## Commands
 

diff --git a/cli.md b/cli.md
@@ -0,0 +1,83 @@
+# Command Line
+
+## Commands
+
+[Cheat Sheets](https://github.com/WebDevStudios/CLI-Cheat-Sheet)
+
+| Command | meaning | example |
+| :--- | :--- | :--- |
+| man <command> | View the manual for given command| |
+| `pwd` | Print work directory | |
+| `ls` | list files in current directory | |
+| `ls -a` | List all files, including hidden files | |
+| `ls -l` | List files in current directory AS a list | |
+| `cd /` | Change directory to root | |
+| `cd ~` | Change directory to home | |
+| `cp [origin] [destination]` | copy | cp text.txt . | |
+| `echo "hello" > file.txt` | print "hello" to file.txt | |
+| `say "hello"` | Use the voice module to read the string "hello"| |
+| `cat filename` | print filenamem | |
+| `head filename` | print first x lines of filename | |
+| `tail filename` | print last x line of filename | |
+| `history > file1.txt` | replace contents of file1.txt with history | |
+| `history >> file1.txt` | append contents of file1.txt with history | |
+| `history \ grep "git" > file1.txt` | Find the word "git" in my history and replace the content of file1.txt with the result| |
+| `find . -name "file*"` | find files and folders with the characters "file" AS part of the name | |
+| `cd -` | go back to the most recent dir you've been in | |
+| `chmod ----------` | change permissions | |
+| `which python3` | Shows you where the python command is located | |
+| `rm -rf folder_or_filename` | remove folder_filename forcefully recursively | |
+| `history` | display past commands ||
+| `touch scriptname.sh` | create shell script scriptname.sh | |
+| `lsof -i tcp:8000` | List open files on tcp port 8000 | |
+| `kill -9 pid` | kills the process with the pid | |
+| `lsof -t -i tcp:8000 | xargs kill -9` | kill all processes on port 8000|
+
+#### CLI options
+| option | Effect     |
+| :--- | :--- |
+| `-r` | recursively |
+| `-m` | message |
+
+
+## Customization
+
+Change `~/.bash_profile`, `.profile` or `~/.zscrc` to set custom command aliases
+
+| alias | Resolves to | Description |
+| :--- | :--- | :-- |
+| `zshcf` | vim ~/.zshrc | Edit zsh profile settings|
+
+
+#### Permissions
+
+drwxr
+
+rwx = Read Write Execute
+
+| Directory | Owner | Group | User |
+| :-- | :-- | :-- | :-- |
+| - | - - - | - - - | - - - |
+| d | rwx | rwx | rwx |
+| 1 | 421 | 421 | 421 |
+
+##### Examples
+```py
+chmod 777 = read(4), write(2) and execute(1) right for owner(4), group(2) and user(1)
+chmod 777  = give owner, group and user read, write and execute rights
+chmod 444 = give owner, group and user read access
+```
+
+### Shell Scripting
+*Everything is a file!*
+```
+#!/bin/bash/
+echo "starting script...
+touch ~/Desktop/virus"
+echo "creating virus"
+echo "=============="
+echo "adding to virus..."
+find /Users/vkng/Dropbox/99_code/Python/CodingNomads -name "*week*" >> ~/Desktop/virus
+open ~/Desktop/virus
+```
+```#!/bin/bash/``` is called the shbang
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