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Full Discussion: Retrieving output interactively
Top Forums UNIX for Dummies Questions & Answers Retrieving output interactively Post 302068897 by fidodido on Tuesday 21st of March 2006 02:59:07 PM
Old 03-21-2006
I just see that td is just a wrapped tail -f under the covers. So, this actually make things easier, since I just want to, as new lines are added to this output, verify them to apply my criteria based on what I found on these. Still, if I do `tail -f file` while just seem to hang there.
 

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LEARN ABOUT LINUX

safe_finger

SAFE_FINGER(8)						     Linux Programmer's Manual						    SAFE_FINGER(8)

NAME

       safe_finger - finger client wrapper that protects against nasty stuff from finger servers

SYNOPSIS

       safe_finger [finger_options]

DESCRIPTION

       The  safe_finger  command  protects  against nasty stuff from finger servers. Use this program for automatic reverse finger probes from the
       tcp_wrapper (tcpd) , not the raw finger command. The safe_finger command makes sure that the finger client is not run with root privileges.
       It  also  runs  the finger client with a defined PATH environment.  safe_finger will also protect you from problems caused by the output of
       some finger servers. The problem: some programs may react to stuff in the first column. Other programs may get upset by thrash anywhere	on
       a  line.  File  systems may fill up as the finger server keeps sending data. Text editors may bomb out on extremely long lines.	The finger
       server may take forever because it is somehow wedged.  safe_finger takes care of all this badness.

SEE ALSO

       hosts_access(5), hosts_options(5), tcpd(8)

AUTHOR

       Wietse Venema, Eindhoven University of Technology, The Netherlands.

Linux								  21th June 1997						    SAFE_FINGER(8)
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