ok so I'm having major issues trying to figure this out:
I have this program that I'm inputting the files in hte current directory which are image files...it spits out 5 line chunks describing the files...
filename: (name of file)
size: (100 x 200)
arbitrary data
arbitrary data
arbitrary... (4 Replies)
How to sort such files which contains records of varying length and varying lines? (With respect to Bash shell)
Eg:
Each record begins with a sting of 1/0(binary) which may or may not be followed by properties like AB,BS etc.
I have to sort such records on the basis of 1/0 string and keep the... (2 Replies)
hi
i have file like below:
col1,col2,col3,col4
val1,val2,val3,val4
abc1,abc2,abc3,abc4
this is a 4 column file with 3 rows.
i want to sort the file like.. first on col1, then on col2 and so ..on..
i want the sort order to be descending.
Pls help..
Thnks
Sumit (2 Replies)
Hi,
i have file1 which looks like:
x1 y1 z1
x2 y2 z2
...(and so on)
and file2 which looks like:
a11 a12 a13
a21 a22 a23
a31 a32 a33
and i want to replace file1 with the following values:
x1' y1' z1'
x2' y2' z2'
...(and so on) (2 Replies)
i have file a
123
234
456
567
678
and file b
123|xxx|hhh|ppp or zzz
234|rrr|ttt|xxx
432|ttt|mmm|nnn
678|cft|byt|mop
i want to compare file a to file b such that when each of the lines in file a can be found in file b column1 and also xxx or hhh or ppp or zzz can be... (12 Replies)
I have the following set of files and I want to order them according to the ascending values of the run:
For example, doing
ls -lrt *drw*.log
gives
n02-z30-sr65-rgdt0p25-dc0p08-4x3drw.log
n02-z30-sr65-rgdt0p25-dc0p03-8x6drw.log
n02-z30-sr65-rgdt0p25-dc0p01-8x6drw.log
... (18 Replies)
Hi,
This is something that probably it is more difficult to explain than to do.
I have two files e.g.
FILE1
A15 8.3102E+00 3.2000E-04
A15 8.5688E+00 4.3000E-05
B13 5.1100E-01 1.9960E+00
B16 5.1100E-01 2.3000E-03
B16 8.6770E-01 1.0000E-07
B16 9.8693E-01 3.4000E-05... (4 Replies)
Hi,
I have two files (file1.txt, file2.txt) in which, I would like to multiply all the values in file1 with the first row value of file2, file1 * second row value of file2, file1 * third row value of file2 and so on.
Below are my sample data.
file1.txt file2.txt ... (6 Replies)
Discussion started by: ida1215
6 Replies
LEARN ABOUT DEBIAN
plan9-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 one of the file names 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.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO sort(1), comm(1), awk(1)BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)