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Full Discussion: Print n lines from top and n lines from bottom of all files with .log extenstion
Top Forums Shell Programming and Scripting Print n lines from top and n lines from bottom of all files with .log extenstion Post 302887840 by kraljic on Tuesday 11th of February 2014 06:41:44 AM
Old 02-11-2014
Print n lines from top and n lines from bottom of all files with .log extenstion
Oracle Linux 6.4

In a directory I have more than 300 files with the extension .log

I want the first 5 and last 5 lines of these .log files to be printed on screen with each file's name.

Expected output :

Code:
Printing first 5 and last 5 lines of FX_WT_Feb8_2014.log

 !! Authentication dialogue with 10.79.60.158 failed
   R:  !! Failed to pull policy from policy server
   R:  !! Did not start the scheduler
   There is no readable input file at promises.cf
    !!! System error for stat: "No such file or directory"
   
 
 !! Authentication dialogue with 10.79.60.158 failed
    R:  !! Failed to pull policy from policy server
    R:  !! Did not start the scheduler
    cf-agent was not able to get confirmation of promises from cf-promises, so going to failsafe
There is no readable input file at promises.cf

 

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LEARN ABOUT OSX

uulog

uulog(1)						      General Commands Manual							  uulog(1)

NAME

       uulog - display entries in the UUCP log file.

SYNOPSIS

       uulog  [-#]  [-n  lines] [-sf system] [-u user] [-DSF] [--lines lines] [--system system] [--user user] [--debuglog] [--statslog] [--follow]
       [--follow=system]

DESCRIPTION

       The uulog program can be used to display entries in the UUCP log file.  It can select the entries for a particular system or  a	particular
       user.  You can use it to see what has happened to your queued jobs in the past.	Different options may be used to select which parts of the
       file to display.

OPTIONS

       -#, -n lines, --lines lines
	    Here '#' is a number; e.g., `-10'.	The specified number of lines is displayed from the end of the log file.  The default is  to  dis-
	    play the entire log file, unless the -f, -F, or --follow options are used, in which case the default is to display 10 lines.

       -s system, --system system
	    Display only log entries pertaining to the specified system.

       -u, --user user
	    Display only log entries pertaining to the specified user.

       -D --debuglog
	    Display the debugging log file.

       -S, --statslog
	    Display the statistics log file.

       -F, --follow
	    Keep displaying the log file forever, printing new lines as they are appended to the log file.

       -f system, --follow=system
	    Keep displaying the log file forever, displaying only log entries pertaining to the specified system.

       Standard UUCP options:

       -X type, --debug type
	    Turn  on  particular debugging types.  The following types are recognized: abnormal, chat, handshake, uucp-proto, proto, port, config,
	    spooldir, execute, incoming, outgoing.  --debug option may appear multiple times.  A number may also be given, which will turn on that
	    many types from the foregoing list; for example, --debug 2 is equivalent to --debug abnormal,chat.

       -I file, --config
	    Set configuration file to use.

       -v, --version
	    Report version information and exit.

       --help
	    Print a help message and exit.

SEE ALSO

       uucp(1)

AUTHOR

       Ian Lance Taylor <ian@airs.com>.  Text for this Manpage comes from Taylor UUCP, version 1.07 Info documentation.

								 Taylor UUCP 1.07							  uulog(1)
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