02-01-2011
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I want to display the number of empty lines in a file. I guess i should use 'grep'...but how..
10x for those who'll help. (5 Replies)
Discussion started by: atticus
5 Replies
2. Shell Programming and Scripting
Dear Experts,
can any one tell me how to display all lines except the last line of a file using awk.
take care
Regards,
SHARY (3 Replies)
Discussion started by: shary
3 Replies
3. Shell Programming and Scripting
Hi
to all in this great forum, im sure this has been asked lots of times before but ive been looking for the past day and cant find the answer.
I use cat/some/file to display its contents but how can i get it to not display hashed out lines, or do i need another command,
Thanks in advance:) (5 Replies)
Discussion started by: dave123
5 Replies
4. Solaris
Hi
is there a way in grep to display few lines before and after the pattern??
I tried options A and B and after-context and before-context. But they don't work on Solaris platform.
please advise. (13 Replies)
Discussion started by: melanie_pfefer
13 Replies
5. Shell Programming and Scripting
Hi All,
please help me to display 5 continious lines from a particular text.
my file is as below.
file1.txt
------
Good
1
2
3
4
5
luck
1
2
3
I want to diplay 5 lines from the word Good. (4 Replies)
Discussion started by: little_wonder
4 Replies
6. UNIX for Dummies Questions & Answers
hiiiii
$ grep ^"#" $file
Will give the lines , which starts with # .And I wanna get the lines which are not starting with #.
How to implement that.
Thanking you
Krish:b: (10 Replies)
Discussion started by: krishnampkkm
10 Replies
7. UNIX for Dummies Questions & Answers
My input file is
N3*123 ABC FLATS~ REF*D9*10000000001~
N3*223 ABC FLATS~ REF*D9*10000000002~
N3*323 ABC FLATS~ REF*D9*10000000003~
N3*423 ABC FLATS~ REF*D9*10000000004~
N3*523 ABC FLATS~ REF*D9*10000000005~
N3*623 ABC FLATS~ REF*D9*10000000006~
N3*723 ABC FLATS~ REF*D9*10000000007~
N3*823... (2 Replies)
Discussion started by: nsuresh316
2 Replies
8. Shell Programming and Scripting
Hi,
What is the easiest way to display set of lines after a search string (x) and before search (y) . The grep -A -B doesn't seem to be helpful in this case. Any ideas..
-Kevin (2 Replies)
Discussion started by: Kevin Tivoli
2 Replies
9. Shell Programming and Scripting
Hi,
I have a huge log file and I wanted to check for the errors which happened on the particular time frame- Since its huge - vi is making difficult for me
So I used the below command to
grep -i 'ERROR' wls.log | grep 'Apr 8'
which showed there were few errors
Is there some way, we... (5 Replies)
Discussion started by: ajothi
5 Replies
10. Shell Programming and Scripting
Hi Gurus,
I have a software which logs event in the log file and it has become to big to search into it.
I want to display all the lines from the log files between
<Jul 21, 2016 3:30:37 PM BST> to <Jul 21, 2016 3:45:37 PM BST>
that is 15 min data .
Please help
Use code tags, thanks. (10 Replies)
Discussion started by: guddu_12
10 Replies
TAIL(1) FSF TAIL(1)
NAME
tail - output the last part of files
SYNOPSIS
tail [OPTION]... [FILE]...
DESCRIPTION
Print the last 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With
no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
--retry
keep trying to open a file even if it is inaccessible when tail starts or if it becomes inaccessible later -- useful only with -f
-c, --bytes=N
output the last N bytes
-f, --follow[={name|descriptor}]
output appended data as the file grows; -f, --follow, and --follow=descriptor are equivalent
-F same as --follow=name --retry
-n, --lines=N
output the last N lines, instead of the last 10
--max-unchanged-stats=N
with --follow=name, reopen a FILE which has not changed size after N (default 5) iterations to see if it has been unlinked or
renamed (this is the usual case of rotated log files)
--pid=PID
with -f, terminate after process ID, PID dies
-q, --quiet, --silent
never output headers giving file names
-s, --sleep-interval=S
with -f, sleep for approximately S seconds (default 1.0) between iterations.
-v, --verbose
always output headers giving file names
--help display this help and exit
--version
output version information and exit
If the first character of N (the number of bytes or lines) is a `+', print beginning with the Nth item from the start of each file, other-
wise, print the last N items in the file. N may have a multiplier suffix: b for 512, k for 1024, m for 1048576 (1 Meg).
With --follow (-f), tail defaults to following the file descriptor, which means that even if a tail'ed file is renamed, tail will continue
to track its end. This default behavior is not desirable when you really want to track the actual name of the file, not the file descrip-
tor (e.g., log rotation). Use --follow=name in that case. That causes tail to track the named file by reopening it periodically to see if
it has been removed and recreated by some other program.
AUTHOR
Written by Paul Rubin, David MacKenzie, Ian Lance Taylor, and Jim Meyering.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for tail is maintained as a Texinfo manual. If the info and tail programs are properly installed at your site, the
command
info tail
should give you access to the complete manual.
tail (coreutils) 4.5.3 February 2003 TAIL(1)