I have many messages such as the test message below:
00:00000:00021:2002/05/13 13:57:00.51 ERROR:- Test error, my test error!!!
I am writing a script in which I need to get everything from the word "ERROR:-" onwards.
I normally use awk for these things, but I am not an expert at it so i am... (6 Replies)
Hi,
I know sed is stream text editor and not a bit more than that. Can anyone explain its usage and advantages?
How is awk different from sed?
I donno i am a bit confused about it. But i have coded in awk and shell.
Thanks,
Nisha
:confused: (7 Replies)
Hey all,
Can I put sed command inside the awk action ?? If not then can i do grep in the awk action ??
For ex:
awk '$1=="174" { ppid=($2) ; sed -n '/$ppid/p' tempfind.txt ; }' tempfind.txt
Assume: 174 is string.
Assume: tempfind.txt is used for awk and sed both.
tempfind.txt... (11 Replies)
Hi,
I have a data file with 5 columns - like this:
"20080401 09:43:08.770798 +0100s","TEST 1","R 1","A TEST","Nov 27 2007","1"
"20080401 09:43:08.770798 +0100s","THIS IS A TEST","R 2","B TEST","Nov 30 2007","10"
"20080401 09:43:08.770798 +0100s","ANOTHER TEST","R 3","B TEST","Nov 05... (7 Replies)
I've got an inventory database with eight columns with things like product name, manufacturer, UPC code, etc. on each line. Our PO (purchase order) number is in the first column. I can grep the date and get the full line of data but I would like to strip out everything but the PO number in the... (5 Replies)
What if I wanted to add a word such as IT after the first character and if theres 3 characters, after the 2nd character?
output would be:
G, it H
G, H it P
G, H, P it L
I'm thinking that AWK would be the easiest way to do this... Currently looking it up.
Right now I'm using awk but I... (13 Replies)
Hi All,
Is there a way of comparing two columns in the same file and deleting the row if the values of the columns match.
I have the sample data file as below.
M024900|175309.00|968.00|17
M025001|19861.79|97.90|148
M025002|431.70|159.00|3
M025003|912.30|159.90|6 ... (6 Replies)
I have a file that contain the data below:
B1
1
2
3
B2
20
30
40
B3
7
8
B4
100
B5
21
22
23How can I retrieve the data for B1 into a seperate file. (8 Replies)
Dear Geeks,
I want to manipulate a file with certain modifications for that using sed or AWK how to do this process for one file i have this type of data.
Input File:
"Restricted and Reserved names .ANISH",3798,"TEST.CO",1201208,6/16/10 0:00,6/16/13 0:00,,,"CO","2nd"^M
"Restricted and... (4 Replies)
Hi,
I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :-
./sample.sh: line... (12 Replies)
Discussion started by: satishmallidi
12 Replies
LEARN ABOUT REDHAT
hash::util
Hash::Util(3pm) Perl Programmers Reference Guide Hash::Util(3pm)NAME
Hash::Util - A selection of general-utility hash subroutines
SYNOPSIS
use Hash::Util qw(lock_keys unlock_keys
lock_value unlock_value
lock_hash unlock_hash);
%hash = (foo => 42, bar => 23);
lock_keys(%hash);
lock_keys(%hash, @keyset);
unlock_keys(%hash);
lock_value (%hash, 'foo');
unlock_value(%hash, 'foo');
lock_hash (%hash);
unlock_hash(%hash);
DESCRIPTION
"Hash::Util" contains special functions for manipulating hashes that don't really warrant a keyword.
By default "Hash::Util" does not export anything.
Restricted hashes
5.8.0 introduces the ability to restrict a hash to a certain set of keys. No keys outside of this set can be added. It also introduces
the ability to lock an individual key so it cannot be deleted and the value cannot be changed.
This is intended to largely replace the deprecated pseudo-hashes.
lock_keys
unlock_keys
lock_keys(%hash);
lock_keys(%hash, @keys);
Restricts the given %hash's set of keys to @keys. If @keys is not given it restricts it to its current keyset. No more keys can be
added. delete() and exists() will still work, but will not alter the set of allowed keys. Note: the current implementation prevents the
hash from being bless()ed while it is in a locked state. Any attempt to do so will raise an exception. Of course you can still bless()
the hash before you call lock_keys() so this shouldn't be a problem.
unlock_keys(%hash);
Removes the restriction on the %hash's keyset.
lock_value
unlock_value
lock_value (%hash, $key);
unlock_value(%hash, $key);
Locks and unlocks an individual key of a hash. The value of a locked key cannot be changed.
%hash must have already been locked for this to have useful effect.
lock_hash
unlock_hash
lock_hash(%hash);
lock_hash() locks an entire hash, making all keys and values readonly. No value can be changed, no keys can be added or deleted.
unlock_hash(%hash);
unlock_hash() does the opposite of lock_hash(). All keys and values are made read/write. All values can be changed and keys can be
added and deleted.
AUTHOR
Michael G Schwern <schwern@pobox.com> on top of code by Nick Ing-Simmons and Jeffrey Friedl.
SEE ALSO
Scalar::Util, List::Util, Hash::Util
perl v5.8.0 2002-06-01 Hash::Util(3pm)