[me@blog]$ ll tips

-rxwrx-rx-	1	me	me	5	Feb	24	22:30	./
-rxwrx-rx-	1	me	me	5	Feb	24	22:30	../
-r-wr--r--	1	me	me	11	Feb	24	22:30	prefix your shell command
-r-wr--r--	1	me	me	31	Mar	6	18:32	exit with a error from vi
-r-wr--r--	1	me	me	51	Mar	7	23:38	google chrome omnibox custom shortcuts
-r-wr--r--	1	me	me	4	Mar	24	12:09	redirect stderr and stdout command to vi
-r-wr--r--	1	me	me	48	Mar	24	13:02	install a missing command using suggestions
-r-wr--r--	1	me	me	5	Apr	26	15:36	show special characters in vi
-r-wr--r--	1	me	me	12	Apr	30	17:38	google chrome clear dns cache
-r-wr--r--	1	me	me	44	May	5	21:18	translate directly in google chrome omnibox
-r-wr--r--	1	me	me	140	May	8	20:02	manage gnome keyring with gkpass script
-r-wr--r--	1	me	me	6	May	22	14:04	test internet bandwidth with wget
-r-wr--r--	1	me	me	101	Sep	7	09:17	pgbench postgresql on ubuntu from scratch
-r-wr--r--	1	me	me	41	Sep	10	11:31	network manager strongswan in ubuntu 16.04
-r-wr--r--	1	me	me	557	Dec	12	14:34	migrate percona master master 5.1 to 5.5 galera
-r-wr--r--	1	me	me	71	Mar	20	22:56	install docker on jessie armhf
-r-wr--r--	1	me	me	12	May	1	15:45	call docker api using curl on local socket
-r-wr--r--	1	me	me	85	May	2	23:10	install nomad with systemd
-r-wr--r--	1	me	me	96	Jun	7	19:22	create selfsigned certificate chrome compatibile
-r-wr--r--	1	me	me	24	Nov	2	18:45	enable unity editor dark mode linux
-r-wr--r--	1	me	me	29	Nov	5	10:04	disable lutris ssl check
-r-wr--r--	1	me	me	54	Dec	28	10:16	forge networking build from source nat hole punch
-r-wr--r--	1	me	me	62	Dec	28	12:39	forge networking create nat hole systemd unit

cat: tips/./: Is a directory