Ubuntu know username

whoami
or
echo $USER

Change username ubuntu

# -l changes login name
# -d changes home directory
# -m copies over contents from old home directory
usermod -l <newname> -d /home/<newname> -m <oldname>

# NOTE: will not work if you are currently logged on as user
# - workaround by temporarily enabling root account and running above command there
# [sudo passwd root] 
# - after root account has been used to change username lock it using
# [sudo passwd -l root]

Source: hepeng.me

Ubuntu know username

echo $USER

Source: askubuntu.com

Similar codes

1 vote222 views1 answer
Special bash variables
Shell/Bash
0 vote221 views1 answer
Crontab execute shell script
Shell/Bash
0 vote219 views1 answer
Epson l220 ubuntu driver
Shell/Bash
2 votes221 views1 answer
Install helm on wsl
Shell/Bash
10 votes219 views1 answer
Excluir repositorio git local
Shell/Bash
17 votes217 views5 answers
Remove directory from git
Shell/Bash
14 votes241 views4 answers
How to open a file using terminal
Shell/Bash
0 vote226 views1 answer
Pipgui install
Shell/Bash
0 vote221 views1 answer
Wsl linux compress siez
Shell/Bash
1 vote262 views1 answer
Getting started with sanity
Shell/Bash