#ls ...will return a list all the files and directories in the current directory are in.As in many Unix commands, there is a great deal you can do with the ls's additional options. Options are noted by the "-" sign, followed by a letter deisgnating which option to use. Note which case is used for the option, as they are case-sensitive. Here are some useful options:
#ls -l ....This of the verbose listing, offering, in addition to the name of each file/subdirectory, alkso offers (in this order): user permissions, the user permissions, owner, and group that the item belong to size of file, last modified #ls -a ....Lists hidden files, those files that start with a "." . Use this for finding system files. #ls -F ....Appends each entry with either a "/" (to indicate it is a directory), a "*" (executable file) or "@" to show it is a symbolic link. #ls -G ....Lists the group each file is owned by. #ls -i ....Lists the innode (storage location on the disk) for each file. #ls -L ....Lists the files referenced by the symbolic link, ratherthanthe names of the links themselves (if using symbolic links. See future entry on symbolic links). #ls -m ....Separates each file and directory with a comma. #ls -n ....Lists each file along with group identifying (GID) and user-identifying (UID) numbers instead of the group/owner names, respectively. #ls -o ....Show owner with names. #ls -p ....Indicate the directories by appending "/" onto the end of their names. #ls -r ....List in reverse alphabetic order. #ls -R ....List the contents of all the subdirectories. #ls -s ....List the size of each file in blocks. #ls -t ....List files in order of when they were modified, starting from the newest (but no dates). #ls -u ....List files in order of when they were accessed, starting from the newest (but no dates). #ls -t ....List one per line.
1. Using multiple options at once: Multiple options can be used together, i.e.
#ls -u1 ...lists the files in order of when they were last accessed, one per line.2. Piping ls results into a text file: Normally, when you use ls, it drops the input onto the screen. But you can also send the results (or "pipeline" them) to a file, using ">." i.e.
#ls -a > [nameoffile]If no file with that name exists, a new file is created with that name. The results can be piped into other commands as well.
3. Wildcards: Wildcards can be used to pick out only those files you are looking for. I.e.
#ls S* ...Will return only those files that start with the letter S.