Change mode :
Make folder and its content writable : chmode -Rf 777 foldername
to view the current directory: pwd
listing with all attributes : ls -l
to view hidden files : ls -a
to list all the ext file: ls -ltr *.ext
to change owner : chown <owner name> <folder name> OR chown -Rf <owner name> <folder name>
to change group : chgrp <group name> <folder name> OR chgrp -Rf <group name> <folder name>
to bring somthing from any outer site : wget http://www.example.com/example.zip
to remove file : rm file name
to remove folder : rm -f folder name
Tags: useful unix command