My input:
File_1:
2000_t
g1110.b1
abb.1
2001_t
g1111.b1
abb.2
abb.2
g1112.b1
abb.3
2002_t
.
.
File_2:
2000_t Ali england 135
abb.1 Zoe british 150
2001_t Ali england 305
g1111.b1 Lucy russia 126 (6 Replies)
Hi, I have 2 files that I have modified to basically match each other, however I want to determine what (if any) line in file 1 does not exist in file 2. I need to match column $1 and $2 as a single string in file1 to $1 and $2 in file2 as these two columns create a match.
I'm stuck in an AWK... (9 Replies)
Help needed urgently please.
I have a large file - a few hundred thousand lines.
Sample
CP START ACCOUNT
1234556
name 1
CP END ACCOUNT
CP START ACCOUNT
2224444
name 1
CP END ACCOUNT
CP START ACCOUNT
333344444
name 1
CP END ACCOUNT
I need to split this file each time "CP START... (7 Replies)
Hi,
I need help with this-
input.txt :
L B white
X Y white
A B brown
M Y black
Read this input file and if 3rd column is "white", then add specific lines to another file insert.txt.
If 3rd column is brown, add different set of lines to insert.txt, and so on.
For example, the given... (6 Replies)
If $1 in file1 matches $2 in file2. Then the value in $2 of file2 is updated to $1"."$2 of file2. The awk seems to only match the two files but not update. Thank you :).
awk
awk 'NR==FNR{A ; next} $1 in A { $2 = a }1' file1 file2
file1
name version
NM_000593 5
NM_001257406... (3 Replies)
I am trying to match $1 in file1 with $2 in file2. If a match is found then $3 and $4 of file2 are copied to file1. Both files are tab-delimeted and I am getting a syntax error and would also like to update file1 in-place without creating a new file, but am not sure how. Thank you :).
file1
... (19 Replies)
I am trying to use awk to match two files that are tab-delimited. When a match is found between file1 $1 and file2 $4, $4 in file2 is updated using the $2 value in file1. If no match is found then the next line is processed. Thank you :).
file1
uc001bwr.3 ADC
uc001bws.3 ADC... (4 Replies)
I am trying to create a cronjob that will run on startup that will look at a list.txt file to see if there is a later version of a database using database.txt as the source. The matching lines are written to output.
$1 in database.txt will be in list.txt as a partial match. $2 of database.txt... (2 Replies)
In the perl below I am trying to set/update the value of $14 (last field) in file2, 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
;... (4 Replies)
Trying to use awk to store the value of $5 in file1 in array x. That array x is then used to search $4 of file1 to find aa match (I use x to skip the header in file1). Since $4 can have multiple strings in it seperated by a , (comma), I split them and iterate througn each split looking for a match.... (2 Replies)
Discussion started by: cmccabe
2 Replies
LEARN ABOUT V7
join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [ options ] 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.
-jn m Join on the mth field of file n. If n is missing, use the mth field in each file.
-o list
Each output line comprises the fields specifed 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.
JOIN(1)