gistfile1.txt

  ~ man ls | grep list
       ls - list directory contents
              do not list implied . and ..
              do not list implied entries ending with ~
       -C     list entries by columns
              list directories themselves, not their contents
       -g     like -l, but do not list owner
              in a long listing, don't print group names
              follow symbolic links listed on the command line
              do not list implied entries matching shell PATTERN (overridden by -a or -A)
              do not list implied entries matching shell PATTERN
       -l     use a long listing format
       -m     fill width with a comma separated list of entries
              like -l, but list numeric user and group IDs
       -o     like -l, but do not list group information
              list subdirectories recursively
       -U     do not sort; list entries in directory order
       -x     list entries by lines instead of by columns
       -1     list one file per line.  Avoid '\n' with -q or -b