With the code you showed us in your earlier thread awk join 2 files, it would seem that you already know how to do this.
What have you tried to solve this problem?
Where are you stuck?
Is your problem that your file1:
does not have any empty field 4 values, but instead has spaces where an empty field is required. I.e., would your code work if file1 had empty fields as in the following modified data:
?
Hi ,
what a wonderful command but so hard to maintain !
i have a file like that :
03/07/2006 05:58:45
03/07/2006 06:58:45
03/07/2006 07:58:50
03/07/2006 08:58:50
and i want to read it and keep only the lines with 3rd field less than 07:00:00
writing it in a second file !
... (2 Replies)
Hi All,
I have a file having content,
$ cat data1.txt
20060620 142 62310 959400 A 5.00
20060620 142 62310 959400 B 3.00
20060620 143 62310 959401 A 7.00
20060620 143 62310 959401 B 4.00
20060620 144 62310 959402 A 8.00
20060620 144 62310... (6 Replies)
Here is my awk code in a shell script:
localRecDir=/somedirectory/
#
awk -v LRD="$localRecDir" '{out = sprintf ("%s0000000%s"),LRD,substr($3,4) ; print > out; close(out)}' *.log
Here is the contents of my *.log file I am trying to parse with my script:
000007 0110 07-0001583
000007 ... (2 Replies)
Could you please help me to achieve the below:
In a file I need to convert the multiple lines whose filed 1 and field 5 values are same into a single line but with the field 4 values comma separed as mentioned below. Fileds after 5 shall be discarded.
Also here by default all other remaining... (6 Replies)
OK, so if $0 represent the entire record... can I change $2 and will that be reflected back in $0?
I think the following answers that YES, it does work. But is there anything I should be thinking about prior to doing this? What I am actually doing is part of 5 pages of scripting and awk... (1 Reply)
I have got a sample file below(colon(:) is the field separator) . The data is like
col1:col2:col3:col4:col5:col6:col7:col8:col9:col10
11:12:012:aa:a a a:10::111:12:
311:321:320:caad::321:31:3333::
2:22:222::bbb::cads::2222:20
:::::12:1234::12:
:5:55::555:5555::::55550
Now I want to find... (9 Replies)
I have the following string
512m512m
I'm trying to split the string using awk
awk '{ split(512m512m,a,"m") print $a; $a }'
Sometimes the string could be
1024g1024g or 2048G2048G or 512M1024G
how can i change the fieldsep to be a alphabet irrespective of case, and also... (8 Replies)
Hallo Family,
I have csv file which has over a million records in it. All i want to do is to change field 2 to have the same value as field 10.
sample file:Now
0860093239,Anonymous,unconditional,+27381230283,Anonymous,unconditional,y,public,,2965511477:0A
Desired output:
... (2 Replies)
Dear friends,
I'm wondering if we could do some simple math on two arrays with the same size?
a1
Fe -0.21886700 -0.01417600 -0.24390300
C 2.20529400 0.89434100 -0.61061000
C -1.89657700 -0.74793000 -0.07778200
C ... (8 Replies)
Discussion started by: liuzhencc
8 Replies
LEARN ABOUT MINIX
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [-an] [-e s] [-o list] [-tc] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If file1 is `-', the standard
input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Fields are normally separated by blank, tab or newline. In this case, multiple separators count as one, and leading separators are dis-
carded.
These options are recognized:
-an In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-e s Replace empty output fields by string s.
-o list
Each output line comprises the fields specified in list, each element of which has the form n.m, where n is a file number and m is a
field number.
-tc Use character c as a separator (tab character). Every appearance of c in a line is significant.
SEE ALSO sort(1), comm(1), awk(1).
BUGS
With default field separation, the collating sequence is that of sort -b; with -t, the sequence is that of a plain sort.
The conventions of join, sort, comm, uniq, look and awk(1) are wildly incongruous.
7th Edition April 29, 1985 JOIN(1)