script to tail file; problem with awk and special characters
Trying to use code that I found to send only new lines out of a log file by doing:
Code:
while :; do
temp=$(tail -1 logfile.out)
awk "/$last/{p=1}p" logfile.out #pipe this to log analyzer program
last="$temp"
sleep 10
done
Script works fine when logfile is basic text, but when it contains characters that have brackets and slashes, the awk command has issues:
Code:
awk: fatal: Invalid range end: /[15C8:01E6-0258] 01/
Here is sample data in log:
Code:
[15C8:01EB-1DF8] 01/24/2012 08:03:43 AM Open session
[15C8:01EB-0310] 01/24/2012 08:03:43 AM Closed session
[11A8:000F-06F4] 01/24/2012 08:03:44 AM Router: Message 0047BCE8 delivered to
[15C8:01EB-1660] 01/24/2012 08:03:44 AM Opened session
[15C8:01E6-0258] 01/24/2012 08:03:44 AM Closed session for
I have tried different ways of putting quotes around the last variable, but does not work or breaks script in different way. Any awk experts have suggestions?
i have this script that searches for a pattern.
However it fails if the pattern includes some
special characters. So far, it fails with the
following strings:
1. -Cr
2. $Mj
3. H'412
would a sed or awk be more effective?
i don't want the users to put the (\)
during the search (they... (5 Replies)
Hi all,
How do I extract a value without special characters? I need to extract the value of %Used from below and if its greater than 80, need to send a notification.
I am doing this right now..Its giving 17%..Is there a way to extract the value and assign it to a variable in one step?
df |grep... (3 Replies)
Hi all,
We are facing the following problem in our HP-UX machine: software that manipulates utf-8 encoded strings (e.g. during string cut), fails to correctly manipulate strings (all containing Greek characters) that contain special characters like @, &, # etc. Actually, in different... (3 Replies)
Hi All,
I have a CSV file in which some fields contains special character for ex:-
my file is file 1
cat file1
abcd,bgfht,ngbht,abvc ****
hdlld,hsgdt,bhfy,knht ****
whenever i am trying to put a 4th feild in a variable its giving me list of all the files i have in current... (6 Replies)
I'm using awk '{print $1}' and it works most of the time to print the contents of a mysql query loop, but occationally I get a field with some special character in it, is there a way to tell awk to ignore all special characters between my FS? I have >186K records, so building a list of ALL special... (6 Replies)
Hi Experts.
I'm stuck with the below AWK code where i'm trying to move the records containing any special characters in the last field to a bad file.
awk -F, '{if ($NF ~ /^|^/) print >"goodfile";else print >"badfile"}' filename
sample data
1,abc,def,1234,A *
2,bed,dec,342,* A ... (6 Replies)
grep -i "$line,$opline" COMBO_JUNK|awk -F, '
{
C4+=$4
}
{
}
END {
print C4
}
' OFS=,`
when i run this command in the script.... it o/p all the value as 0 if $line contains any special parameters.....
but the same script if i run in command prompt... it shows... (4 Replies)
This is really frustrating because I can't figure it out.
I'm running a health check script. One of the items I'm checking is the amount of memory on a server. I use the free command, which outputs something like this (excerpt)
Mem: 100 100 100 100
Swap: 100 100 100 100
In my debugging... (5 Replies)
Hello Folks,
Need to bisect strings based on a subset.
Below works good.
echo /a/b/c/d | awk -F"/c/d$" '{print $1}'
/a/b
However, it goes awry with special characters.
echo /a/b/c+/d | awk -F"/c+/d$" '{print $1}'
/a/b/c+/d
Desired output:
/a/b
Escaping the special characters... (11 Replies)
Discussion started by: vibhor_agarwali
11 Replies
LEARN ABOUT OSX
locale::codes::langfam
Locale::Codes::LangFam(3pm) Perl Programmers Reference Guide Locale::Codes::LangFam(3pm)NAME
Locale::Codes::LangFam - standard codes for language extension identification
SYNOPSIS
use Locale::Codes::LangFam;
$lext = code2langfam('apa'); # $lext gets 'Apache languages'
$code = langfam2code('Apache languages'); # $code gets 'apa'
@codes = all_langfam_codes();
@names = all_langfam_names();
DESCRIPTION
The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
ISO 639-5.
Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
language family codes will be used.
SUPPORTED CODE SETS
There are several different code sets you can use for identifying language families. A code set may be specified using either a name, or a
constant that is automatically exported by this module.
For example, the two are equivalent:
$lext = code2langfam('apa','alpha');
$lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);
The codesets currently supported are:
alpha
This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.
This is the default code set.
ROUTINES
code2langfam ( CODE [,CODESET] )
langfam2code ( NAME [,CODESET] )
langfam_code2code ( CODE ,CODESET ,CODESET2 )
all_langfam_codes ( [CODESET] )
all_langfam_names ( [CODESET] )
Locale::Codes::LangFam::rename_langfam ( CODE ,NEW_NAME [,CODESET] )
Locale::Codes::LangFam::add_langfam ( CODE ,NAME [,CODESET] )
Locale::Codes::LangFam::delete_langfam ( CODE [,CODESET] )
Locale::Codes::LangFam::add_langfam_alias ( NAME ,NEW_NAME )
Locale::Codes::LangFam::delete_langfam_alias ( NAME )
Locale::Codes::LangFam::rename_langfam_code ( CODE ,NEW_CODE [,CODESET] )
Locale::Codes::LangFam::add_langfam_code_alias ( CODE ,NEW_CODE [,CODESET] )
Locale::Codes::LangFam::delete_langfam_code_alias ( CODE [,CODESET] )
These routines are all documented in the Locale::Codes::API man page.
SEE ALSO
Locale::Codes
The Locale-Codes distribution.
Locale::Codes::API
The list of functions supported by this module.
http://www.loc.gov/standards/iso639-5/id.php
ISO 639-5 .
AUTHOR
See Locale::Codes for full author history.
Currently maintained by Sullivan Beck (sbeck@cpan.org).
COPYRIGHT
Copyright (c) 2011-2012 Sullivan Beck
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.16.2 2012-10-11 Locale::Codes::LangFam(3pm)
01-24-2012
