fish: grc is back

dot_config/fish/config.fish

@@ -1,3 +1,24 @@
 if status is-interactive
+    if command -q grc
+        set -l grc_cmds \
+            iptables ipneighbor ipaddr iproute ip nmap netstat \
+            traceroute tcpdump ss ping \
+            dockerversion dockersearch dockerpull dockerps dockernetwork \
+            docker-machinels dockerinfo dockerimages \
+            lspci lsof lsmod lsblk lsattr getfacl id whois vmstat ulimit \
+            systemctl sysctl stat pv ps ping last gcc free findmnt fdisk env du \
+            dig diff df blkid
+        for cmd in $grc_cmds
+            command -q $cmd && alias $cmd="command grc -es --colour=auto $cmd"
+        end
+    end
+
+    function postexec --on-event fish_postexec
+        set -l ret $status
+        if test $ret -ne 0
+            printf '\e[31m>>\e[39m exit \e[31m%s\e[39m\n' $ret
+        end
+    end
+
     starship init fish | source
 end