A program that works as a system utility ls
There were implemented: •the -ACGRSTacfhilmnortu1@ flags •the usage:usage: uls [-ACGRSTacfhilmnortu1@] [file ...] •basic functionality of this command - list of directory contents without flags •processing offileoperands for files and directories •the view of extended file attributes and access control lists (ACL) •error handling, as in the originalls . Outputulsas the program name instead ofls where necessary •the multicolumn output format when the option-l isn't specified