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read permission
reading
     email
         with mail
         with mutt
         with pine
     INSTALL and README files
     newsgroup messages
         in tin
         pine
README files 2nd
real time
recipes for procmail command 2nd 3rd
redirecting output
     of scripts and saving
     to files
     to multiple locations
     with stderr
reget command
regular expressions (regexp)
     finding lines with specific characteristics
     table of
     using with grep
relative names
remote systems
     checking connections to 2nd
     connecting
         with ssh
         with telnet
     tracing connections with traceroute
     working with remote directories
removing
     directories
     files
     line numbering in vi
     permissions
renice command 2nd
replacing [See searching and replacing.]
reports
restarting daemons
rm command
     deleting directories and files with
     flags for
     removing files
     removing hard links
rmdir command 2nd
root directory 2nd
root users [See also system administrators.]
     about
     becoming root
     changing system configuration
     checking boot messages
     logging in as
     monitoring system
     responsibilities of 2nd 3rd
     security of root password with telnet 2nd
     setting date and time
     starting and stopping daemons
     using sudo utility instead of root
     using watch utility
ROT13 encoding
     embedding in shell script
     using with sed
rpm
rsync utility 2nd
runique command
running scripts and programs
     accepting input while running scripts
     checking job status
     checking processes running
     command-line arguments in scripts
     commands and flags for
     controlling job priorities
     deleting processes
     foreground jobs
     making executable scripts
     running
         background jobs
         commands
     scheduling one-time jobs
     setting up regularly occurring jobs
     suspending jobs 2nd
     timing jobs