AWK: Pattern match between 2 files, then compare a field in file1 as > or < field in file2
First, thanks for the help in previous posts... couldn't have gotten where I am now without it!
So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following:
If $1 and $2 in file1 equals $1 and $2 in file2, then return the the values of $1, $2 and $4 in file1IF $5 in file1 is greater than $3 in file2
I could put a loop together but I think that would be very inefficient compared to "if" this AWK command could be extended.
file1 file2
First I match $1 and $2 in both files with this:
The result contains only the lines in file1 where $1 and $2 are the same in both files:
Now, from these results, I need to determine if $5 in the output above (which is date format YYYYMMDDHHmm) is greater than $3 in file2 and display $1, $2, and $4 from file1 where this conditions exists:
Hi All,
I have file1 line below:
$myName$|xxx
Now I need to read the file1 and find for $myName$ in file2 and replace with xxx
file1:
$myName$|xxx
file2:
My name is $myName$
expected output in file2 after executing the script is below:
my name is xxx
Thanks, (8 Replies)
Hello,
I was hoping someone could help me with this work related problem...
basically what I want to do is the following:
file2:
1 o
2 t
4 f
5 v
7 n
8 e
10 a
file1:
1 : (8 Replies)
Hi Friends,
I am new to Shell Scripting and need your help in the below situation.
- I have two files (File 1 and File 2) and the contents of the files are mentioned below.
- "Application handle" is the common field in both the files.
(NOTE :- PLEASE REFER TO THE ATTACHMENT "Compare files... (2 Replies)
Hi Freinds,
i have a file1 as below
file1
1|ndmf|fdd|d3484|34874
2|jdehf|wru7|478|w489
3|dfkj|wej|484|49894
file2 contains lakhs of records and not in sorted order
i want to retrive only the records from file2 by searcing the first field of file 1
i used
grep ^1 file2... (4 Replies)
Dear All,
Need your help..:D
I am not regular on shell scripts..:(
I have 2 files..
Content of file1
cellRef 4};"4038_2_MTNL_KALAMBOLI"
cellRef 1020};"4112_3_RAINBOW_BLDG"
cellRef 134};"4049_2_TATA_HOSPITAL"
cellRef 1003};"4242_3_HITESH_CONSTRUCTION"
cellRef... (6 Replies)
I am trying to use awk to find all the $2 values in file2 which is ~30MB and tab-delimited, that are between $2 and $3 in file1 which is ~2GB and tab-delimited.
I have just found out that I need to use $1 and $2 and $3 from file1 and $1 and $2of file2 must match $1 of file1 and be in the range... (6 Replies)
Trying to use awk to:
update $2 in file2 with the $2 value in file1, if $1 in file1 matches $13 in file2, which is tab-delimeted. The $2values may already be the same so in that case nothing happens and the next line is processed.
There are exactly 4,605 unique $13 values. Thank you :).
... (4 Replies)
In the awk below I am trying to set/update the value of $14 in file2 in
bold, using the matching NM_ in $12 or $9 in file2
with the NM_ in $2 of file1.
The lengths of $9 and $12 can be variable but what is consistent is the start pattern
will always be NM_ and the end pattern is always ;... (2 Replies)
I have two files which are the output of a multiple choice vocab test (60 separate questions) from 104 people (there are some missing responses) and the question list. I have the item list in one file (File1)
Item,Stimulus,Choice1,Choice2,Choice3,Choice4,Correct... (5 Replies)
Discussion started by: samonl
5 Replies
LEARN ABOUT FREEBSD
join
JOIN(1) BSD General Commands Manual JOIN(1)NAME
join -- relational database operator
SYNOPSIS
join [-a file_number | -v file_number] [-e string] [-o list] [-t char] [-1 field] [-2 field] file1 file2
DESCRIPTION
The join utility performs an ``equality join'' on the specified files and writes the result to the standard output. The ``join field'' is
the field in each file by which the files are compared. The first field in each line is used by default. There is one line in the output
for each pair of lines in file1 and file2 which have identical join fields. Each output line consists of the join field, the remaining
fields from file1 and then the remaining fields from file2.
The default field separators are tab and space characters. In this case, multiple tabs and spaces count as a single field separator, and
leading tabs and spaces are ignored. The default output field separator is a single space character.
Many of the options use file and field numbers. Both file numbers and field numbers are 1 based, i.e., the first file on the command line is
file number 1 and the first field is field number 1. The following options are available:
-a file_number
In addition to the default output, produce a line for each unpairable line in file file_number.
-e string
Replace empty output fields with string.
-o list
The -o option specifies the fields that will be output from each file for each line with matching join fields. Each element of list
has either the form file_number.field, where file_number is a file number and field is a field number, or the form '0' (zero), repre-
senting the join field. The elements of list must be either comma (',') or whitespace separated. (The latter requires quoting to
protect it from the shell, or, a simpler approach is to use multiple -o options.)
-t char
Use character char as a field delimiter for both input and output. Every occurrence of char in a line is significant.
-v file_number
Do not display the default output, but display a line for each unpairable line in file file_number. The options -v 1 and -v 2 may be
specified at the same time.
-1 field
Join on the field'th field of file1.
-2 field
Join on the field'th field of file2.
When the default field delimiter characters are used, the files to be joined should be ordered in the collating sequence of sort(1), using
the -b option, on the fields on which they are to be joined, otherwise join may not report all field matches. When the field delimiter char-
acters are specified by the -t option, the collating sequence should be the same as sort(1) without the -b option.
If one of the arguments file1 or file2 is '-', the standard input is used.
EXIT STATUS
The join utility exits 0 on success, and >0 if an error occurs.
COMPATIBILITY
For compatibility with historic versions of join, the following options are available:
-a In addition to the default output, produce a line for each unpairable line in both file1 and file2.
-j1 field
Join on the field'th field of file1.
-j2 field
Join on the field'th field of file2.
-j field
Join on the field'th field of both file1 and file2.
-o list ...
Historical implementations of join permitted multiple arguments to the -o option. These arguments were of the form
file_number.field_number as described for the current -o option. This has obvious difficulties in the presence of files named 1.2.
These options are available only so historic shell scripts do not require modification and should not be used.
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1)STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 5, 2004 BSD