Hello Akshay,
Thanks for your response. It didn't seem to work and gave me this error message: "A[: Event not found."
That is because of history expansion in bash, which interprets the exclamation mark, even within double quotes. You need to use single quotes like Akshay showed, not double quotes.
You can turn off history expansion altogether with
--
What constitutes a duplicate? $4 (the 4th field), the entire line? Does $2 have a 1:1 correlation with $4? If it is the entire line for example you could use !A[$0]++ instead of !A[$4]++ in Akshay's suggestion..
Last edited by Scrutinizer; 10-18-2013 at 03:17 AM..
This User Gave Thanks to Scrutinizer For This Post:
I have following command which tells me File size in GBs which are greater than 0.01GBs recursively in a dir structure.
ls -l -R | awk '{ if ($5/1073741824 >= 0.01) print $9, $5/1073741824 }'
But there are some files whom I dont have enough permissions, after executing this script
gives me... (1 Reply)
Hi All,
I have the below input and expected ouput. I need a code which can scan through this input file and if the number in column1 is more than 1 , it will print out the whole line, else it will output "No Re-occurrence". Can anybody help ?
Input:
1 vvvvv 20 7 7 23 0 64
6 zzzzzz 11 5... (7 Replies)
file1 contain: (this just a small sample of data it may have thousand of lines)
1 aaa 1/01/1975 delhi
2 bbb 2/03/1977 mumbai
3 ccc 1/01/1975 mumbai
4 ddd 2/03/1977 chennai
5 aaa 1/01/1975 kolkatta
6 bbb 2/03/1977 bangalore
program:
nawk '{
idx= $2 SUBSEP $3
arr = (idx in arr) ?... (2 Replies)
Hi,
I have this scenario; where there are two classes:- apple and orange.
1,2,3,4,5,6,apple
1,1,0,4,2,3,apple
1,3,3,3,3,4,apple
1,1,1,1,1,1,orange
1,2,3,1,1,1,orange
Basically for apple, i have 3 entries in the file, and for orange, I have 2 entries. Im trying to edit the file and find... (5 Replies)
Hello Gurus,
Please help me out of the problem. I ve a input file as below
input clock;
input a; //reset all
input b;
//input comment
output c;
output d;
output e;
input f;
//output comment
I need the output as follows:
\\Inputs (1 Reply)
Hi All,
After Sorting directories and files i have got following output as below, now i only want the strings common in them, so the actual output should be as below in the bottom. How do i do that?
Thanks
-adsi
File to be modified:-
Common Components for ----> AA... (4 Replies)
Hello,
I have a log file that has following output as below.
LAP.sun5 CC
LAP.sun5 CQ
perl.sun5 CC
perl.sun5 CQ
TSLogger.sun5 CC
TSLogger.sun5 CQ
TSLogger.sun5 KR
WAS.sun5 CC
WAS.sun5 MT
WAS.sun5 CQ
I want to output to be in the way below, i tried using awk but could not do it. ... (12 Replies)
Hi,
I have several files that look like this:
File1.txt
Data1
Data2
Data20
File2.txt
Data1
Data5
Data10
File3.txt
Data1
Data2
Data17
File4.txt (6 Replies)
Hi,
I have some data like seen below.
format : apple(hhmm mm/dd).fruit
apple(2345 03/25).fruit
apple(2345 05/06).fruit
orange(0443 05/02).fruit
orange(0345 05/05).fruit
orange(2134 05/04).fruit
grape(0930 04/24).fruit
grape(2330 03/30).fruit
I need to get the data which are... (1 Reply)
history(n) Tcl Built-In Commands history(n)
__________________________________________________________________________________________________________________________________________________NAME
history - Manipulate the history list
SYNOPSIS
history ?option? ?arg arg ...?
_________________________________________________________________DESCRIPTION
The history command performs one of several operations related to recently-executed commands recorded in a history list. Each of these
recorded commands is referred to as an "event". When specifying an event to the history command, the following forms may be used:
[1] A number: if positive, it refers to the event with that number (all events are numbered starting at 1). If the number is negative,
it selects an event relative to the current event (-1 refers to the previous event, -2 to the one before that, and so on). Event 0
refers to the current event.
[2] A string: selects the most recent event that matches the string. An event is considered to match the string either if the string
is the same as the first characters of the event, or if the string matches the event in the sense of the string match command.
The history command can take any of the following forms:
history
Same as history info, described below.
history add command ?exec?
Adds the command argument to the history list as a new event. If exec is specified (or abbreviated) then the command is also exe-
cuted and its result is returned. If exec is not specified then an empty string is returned as result.
history change newValue ?event?
Replaces the value recorded for an event with newValue. Event specifies the event to replace, and defaults to the current event
(not event -1). This command is intended for use in commands that implement new forms of history substitution and wish to replace
the current event (which invokes the substitution) with the command created through substitution. The return value is an empty
string.
history clear
Erase the history list. The current keep limit is retained. The history event numbers are reset.
history event ?event?
Returns the value of the event given by event. Event defaults to -1.
history info ?count?
Returns a formatted string (intended for humans to read) giving the event number and contents for each of the events in the history
list except the current event. If count is specified then only the most recent count events are returned.
history keep ?count?
This command may be used to change the size of the history list to count events. Initially, 20 events are retained in the history
list. If count is not specified, the current keep limit is returned.
history nextid
Returns the number of the next event to be recorded in the history list. It is useful for things like printing the event number in
command-line prompts.
history redo ?event?
Re-executes the command indicated by event and returns its result. Event defaults to -1. This command results in history revision:
see below for details.
HISTORY REVISION
Pre-8.0 Tcl had a complex history revision mechanism. The current mechanism is more limited, and the old history operations substitute and
words have been removed. (As a consolation, the clear operation was added.)
The history option redo results in much simpler "history revision". When this option is invoked then the most recent event is modified to
eliminate the history command and replace it with the result of the history command. If you want to redo an event without modifying his-
tory, then use the event operation to retrieve some event, and the add operation to add it to history and execute it.
KEYWORDS
event, history, record
Tcl history(n)