Switch to fish shell

.config/fish/functions/round.fish

@@ -0,0 +1,22 @@
+function round
+    argparse -n "round" -i "p/precision=!_validate_int" -- $argv
+    or return 1
+
+    set -l value $argv
+
+    set -l precision 0
+    if set -q _flag_precision
+        set precision $_flag_precision
+    end
+
+    set precision $(math 10 ^ $precision)
+
+    set value $(math $value x $precision)
+
+    set -l right $(math $value % 1)
+
+    set value $(math $value - $right)
+    set value $(math $value / $precision)
+
+    echo $value
+end