removed bin
began implementation of ls.cpp
distinguished between directories or flags
implementing stat function
check for flags
almost done with -l flag
pushing to git
Merge branch 'hw0' of https://github.com/bchen022/rshell into ls
converted user/group id
minor fixes
fixing -l time, got -a
major fixing for sort, not done
fixed sort and -a problems, need -R now
added optional file parameters
minor changes
got total and multiple paths output format
alphabetized file parameters
minor fixes
fixed file* and a_flag for columns
-R done but have not done edge cases