Thanks Franklin52 for taking your time to explain this newbie. I'm still learning the code you have shared. Can I have some more questions on this please.
Quote:
Code:
'NR==FNR{a[$1];next}
Define an array a with the first field as index if we read the first file.
I'm able to understand that only while reading the first file NR and FNR will be equal. Is this some kind of "if condition". I could not see any "if" there.
Kindly bear my ignorance.
About the solution by gcp, it is self explanatory and I have no questions on it.
Hi,
I can't find how to achive such thing, please help.
I have try with uniq and comm but those command can't compare columns just whole lines,
I think awk will be the best but awk is magic for me as of now.
file a
a1~a2~a3~a4~a6~a7~a8
file b
b1~b2~b3~b4~b6~b7~b8
output 1:
compare... (2 Replies)
I am trying to compare two file and make changes where ever its different.
for example:
Contents of file1
IP=192.165.89.11
NM=255.255.0.0
GW=192.165.89.1
Contents of file2
IP=192.165.89.11
NM=255.255.255.255
GW=192.165.89.1
NOTE HERE THAT NM IS DIFFERENT
So i want the changes... (6 Replies)
Hello,
I have a 1.6 GB file that I would like to modify by matching some ids in col1 with the ids in col 1 of file2.txt and save the results into a 3rd file.
For example:
File 1 has 1411 rows, I ignore how many columns it has (thousands)
File 2 has 311 rows, 1 column
Would like to... (7 Replies)
Hi, Experts,
I have a requirement as following:
my source file:
a
a
a
b
b
c
c
c
c
I need add one more colume as following:
1 a
2 a
3 a
1 b
2 b
1 c
2 c (4 Replies)
Hello everyone,
I am writing a script to process data from the ATP world tour.
I have a file which contains:
t=540 y=2011 r=1 p=N409
t=540 y=2011 r=2 p=N409
t=540 y=2011 r=3 p=N409
t=540 y=2011 r=4 p=N409
t=520 y=2011 r=1 p=N409
t=520 y=2011 r=2 p=N409
t=520 y=2011 r=3 p=N409
The... (4 Replies)
Hello,
I have some tab delimited data and I need to move the last col. I could hard code it,
awk '{ print $1,$NF,$2,$3,$4,etc }' infile > outfile
but it would be nice to know the syntax to print a range cols.
I know in cut you can do,
cut -f 1,4-8,11-
to print fields 1,... (8 Replies)
Hi Friends,
This is the only solution to my task. So, any help is highly appreciated.
I have a file
cat input1.bed
chr1 100 200 abc
chr1 120 300 def
chr1 145 226 ghi
chr2 567 600 unix
Now, I have another file by name
input2.bed (This file is a binary file not readable by the... (7 Replies)
Hi,
Please help with this.
I have several excel files (with and .xlsx format) with 10-15 columns each.
They all have the same type of data but the columns are not ordered in the same way.
Here is a 3 column example. What I want to do add the alphabet
from column 2 to column 3, provided... (9 Replies)
hi
I have 2 file with more than 10 columns for both
1st file
apple,0,0,0......
orange,1,2,3.....
mango,2,4,5.....
2nd file
apple,2,3,4,5,6,7...
orange,2,3,4,5,6,8...
watermerlon,2,3,4,5,6,abc...
mango,5,6,7,4,6,def.... (1 Reply)
Discussion started by: tententen
1 Replies
LEARN ABOUT V7
dpkg-preconfigure
DPKG-PRECONFIGURE(8) Debconf DPKG-PRECONFIGURE(8)NAME
dpkg-preconfigure - let packages ask questions prior to their installation
SYNOPSIS
dpkg-preconfigure [options] package.deb
dpkg-preconfigure --apt
DESCRIPTION
dpkg-preconfigure lets packages ask questions before they are installed. It operates on a set of debian packages, and all packages that
use debconf will have their config script run so they can examine the system and ask questions.
OPTIONS -ftype, --frontend=type
Select the frontend to use.
-pvalue, --priority=value
Set the lowest priority of questions you are interested in. Any questions with a priority below the selected priority will be ignored
and their default answers will be used.
--terse
Enables terse output mode. This affects only some frontends.
--apt
Run in apt mode. It will expect to read a set of package filenames from stdin, rather than getting them as parameters. Typically this
is used to make apt run dpkg-preconfigure on all packages before they are installed. To do this, add something like this to
/etc/apt/apt.conf:
// Pre-configure all packages before
// they are installed.
DPkg::Pre-Install-Pkgs {
"dpkg-preconfigure --apt --priority=low";
};
-h, --help
Display usage help.
SEE ALSO debconf(7)AUTHOR
Joey Hess <joeyh@debian.org>
2018-02-28 DPKG-PRECONFIGURE(8)
09-16-2009
