awk's associative arrays neither are stored in any particular order or accessed in any particular order. Here's the trick 'round this - assuming your input file comes sorted by date/time:
I have a dual boot machine with both
"Windoze ME" and Redhat Linux 7.2. I want to know if it is possible to practice with the Samba Suite on a dual boot machine if I was able to incorporate using IP addresses. I was thinking if your able to ping yourself why wouldn't you be able to administer... (3 Replies)
I'm playing the shell game of moving and deleting files to make room for current DB backup. A set of files gets moved to serverB when serverA threshold is exceeded. I created two scripts one for serverA and one for serverB. Both scripts are run by cron entry. There is a difference of 12 minutes... (4 Replies)
Hi
We just had an auditor tell us to formally review our logging parameters on the server and implement best practice for logging, based on a risk assessment. Phew!
Before my time here, there was no reasoning behind what we chose to log or not log.
Any ideas where such a "best practice"... (1 Reply)
I want a cheap dedicated machine to install a flavour of unix on and try to learn this OS.
I know nothing about unix, just gone out and bought some books etc.
Should I just get the cheapest old laptop off Ebay to install it on?
What type of unix OS should I install?...a version of... (5 Replies)
So, I have no formal higher education in programming at all and am self taught. I am now wondering what would be considered best practices? Like should I hard code a variable, then compare it to what I want to know or achieve, or should I just put the commands with in the brackets?
Example, a... (5 Replies)
Hi all,
I'v already read some basic books about c++ such as <c++ primer>,<The C++ standard library> etc.,and as we know,knowledge is easy to forget without practicing,so i wanna know some ways to practice my skill with programming.First,i know some ACM sites,however,solving problems on those sites... (4 Replies)
hi
i am new in unix.i have installed linux in my pc,but i want to practice and be expatise in hp ux.but i have no hp server for do it.how could i practice hp ux?please help and give suggestion. (1 Reply)
Is there any sites out there that have examples of things they want you to go and script for practice? I have looked around but have came up empty handed. I have been writing scripts for things I need on my nix box but have am wanting more challenging things to keep me learning. I would prefer... (3 Replies)
Dears,
Kindly as preparing to get AIX certification I'd like to have your guide & support where can I find dump or exam forms for below :-
Test 000-103: AIX 6.1 Basic Operations
Test 000-221: AIX 7 Administration
I want to look at real questions and try to solve it , is it possible to... (1 Reply)
Hi everyone.
Unfortunately I can't find advice's about LVM Physical Extent for HPUX.
As far as I know we can set for 1PE size from 1MB to 256 MB. But in what cases it should be different? Maybe exist any strict rules, requirements or any best practice? (2 Replies)
Discussion started by: jess_t03
2 Replies
LEARN ABOUT PLAN9
tail
TAIL(1) General Commands Manual TAIL(1)NAME
tail - deliver the last part of a file
SYNOPSIS
tail [ +-number[lbc][rf] ] [ file ]
tail [ -fr ] [ -n nlines ] [ -c ncharacters ] [ file ]
DESCRIPTION
Tail copies the named file to the standard output beginning at a designated place. If no file is named, the standard input is copied.
Copying begins at position +number measured from the beginning, or -number from the end of the input. Number is counted in lines, 1K
blocks or characters, according to the appended flag or Default is -10l (ten ell).
The further flag causes tail to print lines from the end of the file in reverse order; (follow) causes tail, after printing to the end, to
keep watch and print further data as it appears.
The second syntax is that promulgated by POSIX, where the numbers rather than the options are signed.
EXAMPLES
tail file
Print the last 10 lines of a file.
tail +0f file
Print a file, and continue to watch data accumulate as it grows.
sed 10q file
Print the first 10 lines of a file.
SOURCE
/sys/src/cmd/tail.c
BUGS
Tails relative to the end of the file are treasured up in a buffer, and thus are limited in length.
According to custom, option +number counts lines from 1, and counts blocks and characters from 0.
TAIL(1)