Here is my list, which contains URLs for file downloads:
This list been acquired using curl and saved to a text file. The file is used as input for wget and the files are downloaded into a specified directory. I have worked out the curl and wget syntax and have working lines of code.
However I don't need to download all of the files listed in the text file as some are older versions of software for a particular models of hardware.
From the text above models are defined by model,revision (x,x) and the software versions are in the form major.minor.revision (x.x.x) or sometimes major.minor (x.x).
From my reading of the boards and limited knowledge of awk I need to isolate the (model,revision) patterns
and use an if statement to print those which are unique. But where there are other lines which match compare by the version numbers, which means I'll need to redefine FS and OFS to isolate the second pattern.
The comparison will then only print lines that have the latest software version. From the example lines above that would be:
I think awk is up to the task but my knowledge of it is not. Any ideas would be much appreciated!
Last edited by Scrutinizer; 04-06-2013 at 05:24 PM..
Reason: Changed all icode tags to code tags
I have an input file. Each line in it has several characters. If the first three characters of the line is '000' or '001' or '002' or '003', I need to print it in output. How can I do this in awk.
I am able to do if the search string is only one (let us say 000).
cat <filename> | awk... (1 Reply)
hi,
I want to compare i variable in the awk statement but its not working out. Pl help me out
If we do the comparison like this its OK,
cat sample | awk -F" ", '{if ($1=="1-Sep-2009") print $1,$2,$3,$4,$5}'
But if u use a variable instead of "1-Sept-2009", it does not return anything,... (2 Replies)
I have two files which I would like to compare and then manipulate in a way.
File1:
pictures.txt 1.1 1.3
dance.txt 1.2 1.4
treehouse.txt 1.3 1.5
File2:
pictures.txt 1.5 ref2313 1.4 ref2345 1.3 ref5432 1.2 ref4244
dance.txt 1.6 ref2342 1.5 ref2352 1.4 ref0695 1.3 ref5738 1.2... (1 Reply)
Hello all,
Probably a very simple question, I am stuck with a small part of a code:
I am trying to do a comparison to get the maximum value of column 6 if columns 1, 4 and 5 of two or more rows match. Here is what I am doing:
awk -F'\t' '{if ($6 > a)a=$6}END{for (i in a) print i"\t"a}'
... (4 Replies)
my files are as follows
fileA sepearated by tab /t
00 lieferungen
00 attractiop
01 done
02 forness
03 rasp
04 alwaysisng
04 funny
05 done1
fileB
funnymou120112
funnymou234470
mou3raspnhdhv
rddfgmoudone1438748
so all those record which are greater than 3 and which are not... (6 Replies)
Hi,
I'm new to AWK and I'm having problems comparing a field to a string variable.
/ARTIST/ {x = $2}
$1 ~ x {print $0}My code tries to find a record with the string "ARTIST". Once it finds it, it stores the second field of the record into a variable. I don't know what the problem is for the... (7 Replies)
Can you please help me on belw awk comparsion which doest not work
cat employee_list
NAME Last-login
Jack 03/25/2013
Maneul 03/26/2013
Eric 03/26/2013
Samuel 03/28/2013
loak 03/29/2013
zac 03/29/2013
this is my awk .. it gives me error
cat employee_list | awk '(($2=='date... (3 Replies)
Hi All,
i have two files file1 ,file 2
file 1
col1|col2|col3|col4|col5|col6|col7|col8
11346925|0|2009-09-20|9999-12-31|100|0
11346925|0|2009-09-20|9999-12-31|120|0
12954311|0|2009-09-11|9999-12-31|100|0
12954311|0|2009-07-23|2999-12-31|120|0
12954312|0|2009-09-11|9999-12-31|100|0... (9 Replies)
Hi , Need help, p
for value in `awk -F, '{print $1 }' ad | uniq`
do
x=$(echo $value)
echo $x
echo `awk -F, '{if( $1 == $x) sum = sum + $8 } END{print sum}' ad` --- not working
echo `awk -F, '{if($1 == “MT”) sum = sum + $8 } END{print sum}' ad` -- Working but hard coded
done;
ad... (4 Replies)
I need to use awk to return lines in multiple files that contain a date between a start date and end date. The format of the date is as seen in column 3 in the following line.
A,1458147240,Mar 30 2015 12:54:00PM,s15u4chn ,2,GPS Major Alarm `clear`,component.Channel,10,15,0,138,183,,,Mar 16... (4 Replies)
Discussion started by: randman1
4 Replies
LEARN ABOUT CENTOS
igawk
IGAWK(1) Utility Commands IGAWK(1)NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)