File Systems - Novell LINUX ENTERPRISE SERVER 10 SP2 - INSTALLATION AND ADMINISTRATION Installation Manual

grep [options] searchstring files
The grep command finds a specific search string in the specified files. If the search
string is found, the command displays the line in which searchstring was
found along with the filename.
-i
Ignores case
-H
Only displays the names of the respective files, but not the text lines
-n
Additionally displays the numbers of the lines in which it found a hit
-l
Only lists the files in which searchstring does not occur
diff [options] file1 file2
The diff command compares the contents of any two files. The output produced
by the program lists all lines that do not match. This is frequently used by program-
mers who need only send their program alterations and not the entire source code.
-q
Only reports whether the two files differ
-u
Produces a "unified" diff, which makes the output more readable

File Systems

mount [options] [device] mountpoint
This command can be used to mount any data media, such as hard disks, CD-ROM
drives, and other drives, to a directory of the Linux file system.
-r
Mount read-only
Working with the Shell 371