09-10-2019
Shell script to tail a file with unknown numbers
Hello,
I would like to write script to tail a file for different environment
But the number of lines are keep changing
How can I write a script
For example:
env could : A, B or C
and log files could be a.log, b.log and c.log
with the number of lines can change
say sometimes it 100 last lines or 400 last lines or full log files
How to accomplish this using a script
thanks in advance
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E34L 1 250
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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)