As a person raised by GUIs, an extra visual confirmation and an extra prompt is a nice touch. I also like when the system says “Oh, is that a directory? No problem, I’ll give you the usual treatment.” You know what I mean?

alias ls='ls --group-directories-first --color=auto -w 120'
alias ll='exa --group-directories-first -l'
alias la='ll -a'
alias lt='ll --tree'

alias cp='cp --recursive --interactive --verbose --reflink=always'
alias mv='mv --interactive --verbose'

# custom pwd
# - replace $HOME with ~
# - make everything before the last '/' green, and everything after white and bold
# - alias to p
alias pwd="pwd | sed 's:$HOME:~:' | sed -E 's:(.*/)([^/]+):\x1b[32m\1\x1b[0m\x1b[1m\2\x1b[0m:'"
alias p="pwd"

# custom cd.
# - prints the new directory after cd'ing.
cd () { 
    command cd "$@" && p;
}
alias c="cd"
alias '..'='c ..'
alias '...'='c ../..'

# For the '~' alias, we want to use the original cd because printing '~'
# again would be redundant.
alias '~'='command cd'

# custom rm.
# adds a '-r' flag only if there is a single argument and that argument
# is a directory.
# This is because I want the behavior of -I (interactive) to be the default,
# but I also want to have the -r flag available when I need it without being
# prompted for single files.
function rm () { 
  if [ $# -eq 1 ] && [ -d "$1" ]; then
    rm --verbose --interactive=once --recursive "$1";
  else
    rm --verbose --interactive=once "$@";
  fi;
}

# mkdir + cd (created as a function because they run on the current shell,
# which is what we want for cd)
mc () { 
  mkdir -p -- "$1" && cd -P -- "$1";
}
  • bizdelnick
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    1 year ago

    It is a very bad idea to use aliases and functions modifying behavior of standard commands. Once you will type some command on a machine where your aliases are not defined and get unexpected results, probably losing your data in the worst case. So la for ls -a is fine, but rm for rm -r is not. Choose unique names for your aliases.