Apply some recommendations from git dx book

home/dot_shell_aliases

@@ -0,0 +1,29 @@
+if [ -x /usr/bin/dircolors ]; then
+    alias ls='ls --color=auto'
+    alias dir='dir --color=auto'
+    alias vdir='vdir --color=auto'
+    alias grep='grep --color=auto'
+    alias fgrep='fgrep --color=auto'
+    alias egrep='egrep --color=auto'
+fi
+
+function la {
+    ls_out=$(\ls -lah --color=always "$@")
+    let "allowed_lines = $(tput lines) - 3"
+    if [ $(echo "$ls_out" | wc -l) -le $allowed_lines ]; then
+	echo "$ls_out"
+    else
+	echo "$ls_out" | less -r
+    fi
+}
+
+function search() {
+        quoted=$(python -c "import urllib.parse, sys; print(urllib.parse.quote_plus(' '.join(sys.argv[1:])))" "${@}")
+        w3m "https://duckduckgo.com/?q=${quoted}"
+}
+
+alias black='black --line-length 99'
+
+alias cdtmp='cd $(mktemp -d)'
+
+alias g='git'