Prefer nvim over vim for EDITOR, don't use which

zshrc

@@ -68,7 +68,7 @@ autoload -U compinit
 compinit
 
 # Add pip to the old completion engine if present
-if which pip &> /dev/null; then
+if command -v pip &> /dev/null; then
   function _pip_completion {
     local words cword
     read -Ac words
@@ -178,9 +178,9 @@ frequent-directory Projects="$HOME/Projects"
 
 # Aliases
 alias grep='grep --color=always'
-which cmake &> /dev/null && \
+command -v cmake &> /dev/null && \
   alias cninja='cmake -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=ON'
-which ssh &> /dev/null && \
+command -v ssh &> /dev/null && \
   alias ssh='TERM=xterm-256color ssh'
 alias weather="curl wttr.in"
 alias cls="clear && printf '\e[3J'"
@@ -188,15 +188,15 @@ alias cls="clear && printf '\e[3J'"
 case `uname` in
   Linux)
     alias ls='ls -F --color=auto'
-    if which cgdb &> /dev/null; then
+    if command -v cgdb &> /dev/null; then
       alias debug='cgdb --args'
-    elif which gdb &> /dev/null; then
+    elif command -v gdb &> /dev/null; then
       alias debug='gdb --args'
     fi
     ;;
   Darwin)
     alias ls='ls -GFh'
-    which lldb &> /dev/null && \
+    command -v lldb &> /dev/null && \
       alias debug='lldb --'
     ;;
 esac