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
dpkg-awk
DPKG-AWK(1) General Commands Manual DPKG-AWK(1)NAME
dpkg-awk - Utility to read a dpkg style db file
SYNOPSIS
dpkg-awk [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ... -- <out_fieldname> ..
DESCRIPTION
dpkg-awk Parses a dpkg status file (or other similarly formatted file) and outputs the resulting records. It can use regex on the field
values to limit the returned records, it can also be told which fields to output, and it can sort the matched fields.
OPTIONS -f filename
--file filename
The file to parse. The default is /var/lib/dpkg/status.
-d [#]
--debug [#]
Each time this is specified, it increased the debug level.
-s field(s)
--sort field(s)
A space or comma separated list of fields to sort on.
-n field(s)
--numeric field(s)
A space or comma separated list of fields that should be interpreted as numeric in value.
-rs ??
--rec_sep ??
Output this string at the end of each output paragraph.
-h
--help Display some help.
fieldname
The fields from the file, that are matched with the regex given. The fieldnames are case insensitive.
out_fieldname
The fields from the file, that are output for each record. If the first field listed begins with ^, then the list of fields that
follows will NOT be output.
BUGS
Be warned that the author has only a shallow understanding of the dpkg packaging system, so there are probably tons of bugs in this pro-
gram.
This program comes with no warranties. If running this program causes fire and brimstone to rain down upon the earth, you will be on your
own.
This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg.
AUTHOR
Adam Heath <doogie@debian.org>
DEBIAN Debian Utilities DPKG-AWK(1)