# usr (1-usr.com)

People say "usr" as a quick way to say "user." It means the person using a device, app, or service. It is shorthand in texts, tags, and casual tech talk.

## What a model may hear
- Unix user directory (Unix and Linux file systems): Assume the path /usr and look for system programs, libraries, or shared files; may refuse to write there or expect root access
- User account or identity (databases, APIs, and authentication systems): Look for a username field, user ID, or account record; may filter results by the current user
- USR modem command (Hayes AT command set and dial-up networking): Expect a US Robotics modem protocol or initialization string; may generate obsolete serial commands
- Microcontroller register (ARM and embedded systems documentation): Read it as a User Status Register or similar hardware register; may produce low-level register manipulation code

## Where people and models part ways
- Says: "Show me usr files"
  Means: Files belonging to me, the user
  May be taken as: Lists everything in /usr on a Linux system, which is system files, not personal ones
  Say instead: "Show me files in my user folder or home directory"
- Says: "Change the usr setting"
  Means: Change my user preferences
  May be taken as: Attempts to modify system-wide /usr permissions or ownership, which requires admin rights and is dangerous
  Say instead: "Change my account settings or user preferences"
- Says: "Make a new usr"
  Means: Create a new user profile or account
  May be taken as: Generates a system command to add a Linux user with adduser or useradd, which needs sudo
  Say instead: "Create a new account or sign up a new user"
- Says: "Send it to usr"
  Means: Send the message or file to the person
  May be taken as: Routes output to a file named usr, a directory /usr, or a variable called usr in code
  Say instead: "Send it to the user or to the person's account"

## Tips
- Say "user account" or "my account" when you mean the person, not "usr"
- Say "home directory" or "my files" instead of "usr files" to avoid the system path
- In code requests, spell out "user" as a variable name rather than abbreviating to usr
- If you mean multiple users, say "users" not "usrs" which looks like a system path variant
- Specify "end user" or "customer" when talking about people to separate from technical accounts

## Often confused with
- user: the full, unambiguous word for a person
- usr/bin: a system path for programs, not people
- usr/local: a path for locally installed software
- uid: a numeric user identifier, not a name
- username: the specific login name of one user
- sudo: a command to act as superuser, not ordinary user