Pass awk field to a command line executed within awk
Hi,
I am trying to pass awk field to a command line executed within awk (need to convert a timestamp into formatted date).
All my attempts failed this far.
Here's an example.
It works fine with timestamp hard-codded into the command
How do I do something like
Thanks in advance.
I wanna use a system function to deal with several data. So I use awk variable FILENAME to transfer the file directory to system command, but it does not work.
I use a shell function "out_function" to deal with data and save the result in another directory with the same file name.
How can I... (2 Replies)
Hi
I want to pass variables with the NR function in awk command.
test_file1 is input file having 500 records.
var1=100.
var2=200
awk -F" " 'NR >= $var1 && NR <= $var2' test_file1 > test_file2.
My end result should be that test_file2 should have records from line number between... (2 Replies)
I am trying to pass max as a sommand line argument when I call awk.
Made the modification in the BEGIN but it is not working
I'm getting an error as below:
awk: txsrx.awk:82: (FILENAME=jcd.tx FNR=4161) fatal: cannot open file `40' for reading (No such file or directory)
Somehow it... (2 Replies)
Thanks in advance : )
I try for a long time searching for a way to split a large gzip csv file into many gzip files (except for the last sub-file which is to joint the next big file's children.) All the subfiles are to be named by the field.
But I only managed to split them into the... (9 Replies)
I need to pass values at runtime for the below awk command where
l is the length and partial.txt is the file name.
awk -v l=285 '{s="%-"l"s\n";printf(s,$0);}' partial.txt > temp1.txt; (5 Replies)
Hello,
I'm having some issues getting a home dir from a remote server passed to a variable.
Here is what I have so far:
rsh server "(ls -ld /home*/user | awk '{print \$9}')"
/home3/userThat works fine and brings back what I need.
But when I try to add it to a variable it goes all... (3 Replies)
Hi,
I am facing one issue. The awk command works fine if i hardcode the file name but if is pass it as an arguement it doesn't work. For e.g:Below commands works fine
awk -v A="$type" '{F=substr($0,23,8) "_LTD_" A ".txt"; print $0 >> F; close(F) }' RL004.txt
But the below command does not... (2 Replies)
#!/bin/awk -f
BEGIN {
FS=":";
}
{
if ( $7 == "" ) {
print $1 ": no password!";
}
}
I want to execute this program for a particular user to check for his password from the file /etc/passwd (as the input file) and the user details to be given... (1 Reply)
I am able to execute awk command from shell prompt. but the same command is not getting executed when written and run in a bash script
the command from bash cmd prompt.
awk '/world/{for (i=2; i<NF; i++) printf $i " "; print $NF}1' myfile >tmp$$ ; mv tmp$$ myfile
file:
# hello world my... (4 Replies)
My file (the output of an experiment) starts off looking like this,
_____________________________________________________________
Subjects incorporated to date: 001
Data file started on machine PKSHS260-05CP
**********************************************************************
Subject 1,... (9 Replies)
Discussion started by: samonl
9 Replies
LEARN ABOUT DEBIAN
qpsmtpd::command
Qpsmtpd::Command(3pm) User Contributed Perl Documentation Qpsmtpd::Command(3pm)NAME
Qpsmtpd::Command - parse arguments to SMTP commands
DESCRIPTION
Qpsmtpd::Command provides just one public sub routine: parse().
This sub expects two or three arguments. The first is the name of the SMTP command (such as HELO, MAIL, ...). The second must be the
remaining of the line the client sent.
If no third argument is given (or it's not a reference to a CODE) it parses the line according to RFC 1869 (SMTP Service Extensions) for
the MAIL and RCPT commands and splitting by spaces (" ") for all other.
Any module can supply it's own parsing routine by returning a sub routine reference from a hook_*_parse. This sub will be called with
$self, $cmd and $line.
On successfull parsing it MUST return OK (the constant from Qpsmtpd::Constants) success as first argument and a list of values, which will
be the arguments to the hook for this command.
If parsing failed, the second returned value (if any) will be returned to the client as error message.
EXAMPLE
Inside a plugin
sub hook_unrecognized_command_parse {
my ($self, $transaction, $cmd) = @_;
return (OK, &bdat_parser) if ($cmd eq 'bdat');
}
sub bdat_parser {
my ($self,$cmd,$line) = @_;
# .. do something with $line...
return (DENY, "Invalid arguments")
if $some_reason_why_there_is_a_syntax_error;
return (OK, @args);
}
sub hook_unrecognized_command {
my ($self, $transaction, $cmd, @args) = @_;
return (DECLINED) if ($self->qp->connection->hello eq 'helo');
return (DECLINED) unless ($cmd eq 'bdat');
....
}
perl v5.14.2 2009-04-02 Qpsmtpd::Command(3pm)