Update cheatsheets

tldr/linux/chntpw

@@ -7,16 +7,16 @@ source: https://github.com/tldr-pages/tldr.git
 
 > A utility that can edit windows registry, reset user password, promote users to administrator by modifying the Windows SAM.
 > Boot target machine with live cd like Kali Linux and run with elevated privileges.
-> More information: <http://pogostick.net/~pnh/ntpasswd>.
+> More information: <https://pogostick.net/~pnh/ntpasswd>.
 
 - List all users in the SAM file:
 
 `chntpw -l {{path/to/sam_file}}`
 
-- Edit [u]ser interactively:
+- Edit user interactively:
 
 `chntpw -u {{username}} {{path/to/sam_file}}`
 
-- Use chntpw [i]nteractively:
+- Use chntpw interactively:
 
 `chntpw -i {{path/to/sam_file}}`

tldr/linux/dunstify

@@ -23,4 +23,4 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Display help:
 
-`notify-send --help`
+`dunstify --help`

tldr/linux/getfattr

@@ -0,0 +1,17 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# getfattr
+
+> Display file names and extended attributes.
+> More information: <https://manned.org/getfattr>.
+
+- Retrieve all extended attributes of a file and display them in a detailed format:
+
+`getfattr -d {{path/to/file}}`
+
+- Get a specific attribute of a file:
+
+`getfattr -n user.{{attribute_name}} {{path/to/file}}`

tldr/linux/protonvpn

@@ -0,0 +1,38 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# protonvpn
+
+> Unofficial third-party ProtonVPN client.
+> See also: `protonvpn-connect`.
+> More information: <https://github.com/Rafficer/linux-cli-community>.
+
+- Initialize ProtonVPN profile:
+
+`protonvpn init`
+
+- Connect to ProtonVPN interactively:
+
+`protonvpn {{c|connect}}`
+
+- Display connection status:
+
+`protonvpn {{s|status}}`
+
+- Disconnect from ProtonVPN:
+
+`protonvpn {{d|disconnect}}`
+
+- Reconnect or connect to the last server used:
+
+`protonvpn {{r|reconnect}}`
+
+- Refresh OpenVPN configuration and server data:
+
+`protonvpn refresh`
+
+- Display help for a subcommand:
+
+`protonvpn {{subcommand}} --help`

tldr/linux/protonvpn-connect

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# protonvpn connect
+
+> Connect to ProtonVPN.
+> More information: <https://github.com/Rafficer/linux-cli-community>.
+
+- Connect to ProtonVPN interactively:
+
+`protonvpn {{c|connect}}`
+
+- Connect to ProtonVPN using the fastest server available:
+
+`protonvpn {{c|connect}} {{-f|--fastest}}`
+
+- Connect to ProtonVPN using a specific server with a specific protocol:
+
+`protonvpn {{c|connect}} {{server_name}} -p {{udp|tcp}}`
+
+- Connect to ProtonVPN using a random server with a specific protocol:
+
+`protonvpn {{c|connect}} {{-r|--random}} -p {{udp|tcp}}`
+
+- Connect to ProtonVPN using the fastest Tor-supporting server:
+
+`protonvpn {{c|connect}} --tor`
+
+- Display help:
+
+`protonvpn connect --help`

tldr/linux/setfattr

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# setfattr
+
+> Set extended file attributes.
+> More information: <https://manned.org/setfattr>.
+
+- Set name of attribute for file:
+
+`setfattr -n user.{{attribute_name}} {{path/to/file}}`
+
+- Set a user-defined value of an extended attribute on a file:
+
+`setfattr -n user.{{attribute_name}} -v "{{value}}" {{path/to/file}}`
+
+- Remove a specific attribute of a file:
+
+`setfattr -x user.{{attribute_name}} {{path/to/file}}`

tldr/linux/sysdig

@@ -0,0 +1,38 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# sysdig
+
+> System troubleshooting, analysis and exploration.
+> Capture, filter and store systemcalls.
+> More information: <https://github.com/draios/sysdig/wiki>.
+
+- Capture all the events from the live system and print them to screen:
+
+`sysdig`
+
+- Capture all the events from the live system and save them to disk:
+
+`sysdig -w {{path/to/file}}.scap`
+
+- Read events from a file and print them to screen:
+
+`sysdig -r {{path/to/file}}.scap`
+
+- Filter and Print all the open system calls invoked by cat:
+
+`sysdig proc.name=cat and evt.type=open`
+
+- Register any found plugin and use dummy as input source passing to it open params:
+
+`sysdig -I dummy:'{{parameter}}'`
+
+- List the available chisels:
+
+`sysdig -cl`
+
+- Use the spy_ip chisel to look at the data exchanged with ip address:
+
+`sysdig -c spy_ip {{ip_address}}`