bonnie@nanook:/var/www$ ls -la
-rw-r--r--    1 bonnie   bonnie         56 Jan 17 15:50 afterlife.txt
-rw-r--r--    1 bonnie   bonnie         15 Jan 14 15:14 beauty.txt
-rw-r--r--    1 bonnie   bonnie         66 Jan 14 15:09 beginning.txt
-rw-r--r--    1 bonnie   bonnie         53 Jan 14 15:15 better.txt
-rw-r--r--    1 bonnie   bonnie         59 Feb 12 19:00 born.txt
-rw-r--r--    1 bonnie   bonnie       2407 Feb 14 20:13 cat.txt
-rw-r--r--    1 bonnie   bonnie       1542 Feb 14 21:28 cv.txt
-rw-r--r--    1 bonnie   bonnie        302 Feb  3 23:47 echo.txt
drwxr-xr-x    2 bonnie   bonnie       4096 Feb 15 13:54 img
-rwxr-xr-x    1 bonnie   bonnie        668 Feb 13 23:25 index.cgi
-rw-r--r--    1 bonnie   bonnie        509 Feb  3 22:38 index.txt
-rw-r--r--    1 bonnie   bonnie         31 Jan 14 15:17 knees.txt
-rw-r--r--    1 bonnie   bonnie         57 Jan 14 15:22 lights.txt
-rw-r--r--    1 bonnie   bonnie         32 Jan 15 16:58 men.txt
-rw-r--r--    1 bonnie   bonnie         55 Jan 14 15:08 money.txt
-rw-r--r--    1 bonnie   bonnie         26 Jan 31 01:55 none.txt
-rw-r--r--    1 bonnie   bonnie         22 Feb 13 23:11 occupy.txt
-rw-r--r--    1 bonnie   bonnie        161 Jan 14 15:12 science.txt
-rwxr--r--    1 bonnie   bonnie         54 Feb  5 01:16 sort.cgi
-rw-r--r--    1 bonnie   bonnie         27 Jan 14 15:10 stay.txt
-rw-r--r--    1 bonnie   bonnie         49 Jan 21 01:15 stomach.txt
-rw-r--r--    1 bonnie   bonnie         35 Jan 14 14:01 sugar.txt
-rw-r--r--    1 bonnie   bonnie         69 Feb  2 14:05 taper.txt
-rw-r--r--    1 bonnie   bonnie         35 Feb  5 00:35 tomorrow.txt
-rw-r--r--    1 bonnie   bonnie         16 Jan 14 15:13 watch.txt
-rw-r--r--    1 bonnie   bonnie        102 Jan 14 14:06 winter.txt
-rw-r--r--    1 bonnie   bonnie        103 Jan 14 22:59 world.txt
-rw-r--r--    1 bonnie   bonnie         30 Jan 21 01:08 yes.txt
bonnie@nanook:/var/www$ cat -n *.txt > cat.txt
cat: cat.txt: input file is output file
bonnie@nanook:/var/www$ i miss you
bash: i: command not found
bonnie@nanook:/var/www$