PS
you often (?) see me using commands like
l

Those are aliases to reduce typing.

You can make those aliases by editing ~/.bashrc and adding those,
like I did here:

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -rtl'
alias d='ls'
alias lb='ls -rtl --color=none'

l (ls -rtl) is useful as it shows what you did last
after scrolling of the screen, including modification times and length.


One thing is bash, I do not use bash on my Linux PCs,
but use zsh as shell.
zsh saves a lot of typing if you are working on a terminal all the time,

Have not put zsh on my raspis yet, would improve things.

Greetings
Jan

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