awk - saving results of external script to variable.
So, I've been playing with speeding up some analysis we do by using multiple threads of awk (actually, mawk, but code-compatible as far as I use it) on multiple CPU cores. So, I have a big data file and I have several copies of exactly the same processor script, written in mawk. I also have a "distributor" in mawk whose only job is to determine the modulus of a given line's number and use that to send the line to the appropriate processor script. Then, when that's all done, the results of the processor scripts are joined together into a final result. Here's the "distributor" line:
So, lines 6, 12, 18, etc will go to proc.1.mawk, 7, 13, 19 will go to proc.2.mawk, and so on. Those work very well. The problem is in gathering up those results. Currently, each proc.X.mawk script just spits out its answer to stdout, and I have to pipe to another awk to sum those. My question, then: Is there a way to have the "distributor" receive the results from the proc.X.mawk scripts and sum them itself, such as by saving to a variable that can be acted on later?
I try to get the month (of last save) and the filename into a variable, is this possible ?
something like this :
for month in `ls -la | awk '{print $6}'`
do
if ]
then
a=filename of the matching file
cp $a /Sep
fi
thanks,
Steffen (1 Reply)
i need help with an awk question. i am looking to have an external variable be defined outside of awk but used in awk. so if we have fields $1, $2, $3 so on and so forth, i would like to be able to dictate what field is being printed by something like $. so if i had a counter called test, make it 3... (8 Replies)
How would I pass awk output to a perl variable?
For example, I want to save the value in the 4th column into the variable called test. My best guess is something as follow, but I am sure this isn't correct.
$test = system("awk '/NUMBER/{print \$4}' $_"); (8 Replies)
So I have a if statement inside an awk to check if $2 of a awk equals a specific IP but the test fails. So here is what I have.
# !/bin/sh
echo "Enter client ID"
read ID
echo "Enter month (01, 02, 03)"
read month
echo "Enter day (03, 15)"
read day
echo "Enter Year (07, 08)"
read... (6 Replies)
hi all i am trying to save an awk value into an array in bash:
total=`awk '{sum+=$3} END {print sum}' "$count".txt"`
((count++))
the above statement is in a while loop..
$count is to keep track of file numbers (1.txt,2.txt,3.txt,etc.)
i get the following error:
./lines1:... (1 Reply)
Dear all,
¿How can i insert a variable in a AWK pattern?
I have almost succeeded in solving a puzzle with AWK but now i want to make a script. Let me explain.
cat file.txt | awk 'BEGIN {RS="\\n\\n"} /tux/ { print "\n"$0 }'
I know that this command makes right what i want to do, but mi... (8 Replies)
I want to incorporate the variable in the for statement as a column of my processed file. In the INCORRECT example below, it is $i which corresponds to the i in my for loop:
for i in x86_64 i686; do
awk '{ print $1" "$4" "$5" "$i }'awk $file-$i > processed-$i.log
doneThanks! (3 Replies)
I'm trying to get the universities result data into different file, where the $9 contains unversity field and field7,4 & 5 contains the keys to sort the students by marks. How to use uni variable to match against $9 inside awk?
c=0
for uni in `cat /tmp/global_rank| awk -F ',' '{print... (1 Reply)
Hi,
I am trying to write a bash script in which I need to pass a external variable to the awk program. I tired using -v but it not accepting the value.
Here is my sample code.
#!/usr/bin/bash
######################################################################################
####... (5 Replies)
Good morning all,
This is the file name in question OD_Orders_2019-02-19.csv
I am trying to create a bash script to read into files with yesterdays date on the file name while retaining the rest of the files name. I would like for $y to equal, the name of the file with a formula output with... (2 Replies)
Discussion started by: Ibrahim A
2 Replies
LEARN ABOUT CENTOS
tk_deleteclientmessagehandler
Tk_CreateClientMessageHandler(3) Tk Library Procedures Tk_CreateClientMessageHandler(3)__________________________________________________________________________________________________________________________________________________NAME
Tk_CreateClientMessageHandler, Tk_DeleteClientMessageHandler - associate procedure callback with ClientMessage type X events
SYNOPSIS
#include <tk.h>
Tk_CreateClientMessageHandler(proc)
Tk_DeleteClientMessageHandler(proc)
ARGUMENTS
Tk_ClientMessageProc *proc (in) Procedure to invoke whenever a ClientMessage X event occurs on any display.
_________________________________________________________________DESCRIPTION
Tk_CreateClientMessageHandler arranges for proc to be invoked in the future whenever a ClientMessage X event occurs that is not handled by
WM_PROTOCOL. Tk_CreateClientMessageHandler is intended for use by applications which need to watch X ClientMessage events, such as drag
and drop applications.
The callback to proc will be made by Tk_HandleEvent; this mechanism only works in programs that dispatch events through Tk_HandleEvent (or
through other Tk procedures that call Tk_HandleEvent, such as Tk_DoOneEvent or Tk_MainLoop).
Proc should have arguments and result that match the type Tk_ClientMessageProc:
typedef int Tk_ClientMessageProc(
Tk_Window tkwin,
XEvent *eventPtr);
The tkwin parameter to proc is the Tk window which is associated with this event. EventPtr is a pointer to the X event.
Whenever an X ClientMessage event is processed by Tk_HandleEvent, the proc is called if it was not handled as a WM_PROTOCOL. The return
value from proc is normally 0. A non-zero return value indicates that the event is not to be handled further; that is, proc has done all
processing that is to be allowed for the event.
If there are multiple ClientMessage event handlers, each one is called for each event, in the order in which they were established.
Tk_DeleteClientMessageHandler may be called to delete a previously-created ClientMessage event handler: it deletes each handler it finds
that matches the proc argument. If no such handler exists, then Tk_DeleteClientMessageHandler returns without doing anything. Although Tk
supports it, it's probably a bad idea to have more than one callback with the same proc argument.
KEYWORDS
bind, callback, event, handler
Tk 8.4 Tk_CreateClientMessageHandler(3)