11-29-2011
join works with sorted files.
therefore, both must be sorted prior to the 'join' command.
you may sort to new filenames prior to the 'join', or try to sort in-line
i would recommend sorting to new filenames first.
This User Gave Thanks to joeyg For This Post:
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I was trying to merge the following two example files using their first field:
join -1 1 -2 1 file1 file 2
but nothing is produced. The expected result should be:
rs1005152 7 q21.3 3
It appears that the length of the first field in file1 is causing the problem. Any suggesting on how to... (12 Replies)
Discussion started by: gamma_user
12 Replies
2. Shell Programming and Scripting
So I need a script that does the following:
If a certain user is logged in
Run `command`
Else
Echo “incorrect user”
This is my first stab...which doesn't work:
#!/bin/bash
X="user=`ls -l /dev/console | cut -d " " -f 4`"
Y="foobar"
echo $X
echo $Y (4 Replies)
Discussion started by: doubleminus
4 Replies
3. Shell Programming and Scripting
I'm trying to write a script that moves data that's older than 2 weeks to a different place.
It works well, EXCEPT, that when the script hits a file within a directory inside the working directory, it will move it to the root of the destination directory instead of putting it in the correct... (1 Reply)
Discussion started by: ugolee
1 Replies
4. Shell Programming and Scripting
Hello everyone,
sorry for the title, most of you must getting sick of reading something like
this, but I haven't found a solution, although I found many threads according
to it.
I'm working on a bash script that connects to a network printer with ftp
where I want to upload a pdf created... (3 Replies)
Discussion started by: le_mae
3 Replies
5. Shell Programming and Scripting
Hi friends,
I have two files - input and commands
I want to read the input and replace a value in it with the contents in commands.
My script is like this.
Instead of printing the value in the commands file, it is simply printing $cmd in the output file.
Any pointers are highly... (1 Reply)
Discussion started by: jacobs.smith
1 Replies
6. Shell Programming and Scripting
Hi All,
I have 2 files where the first column of both the files have to be compared and if they match the first six columns of the first file to be extracted in the output file.
Format of files :
File1 : ${SHTEMP}NPBR5.XTR.tmp
S00016678|129|7|MPF|20090106|E... (3 Replies)
Discussion started by: nua7
3 Replies
7. UNIX for Dummies Questions & Answers
Hi all,
I'm trying to use the join command to merge two files, but it's not finding lots of the matches.
I have three files in total:
File A:
31_77
34_46
72_61
85_10
85_23
110_33
144_45
154_25
154_90
170_5
170_44
217_63
255_19
333_20
333_23
333_32 (2 Replies)
Discussion started by: HEP
2 Replies
8. Shell Programming and Scripting
I am trying to execute expect command inside by small bash script to login into servers using key authentication method. My script is as follows:
#!/bin/bash
HOST=$1
/usr/bin/expect -c "
spawn ssh -i /root/.ssh/id_rsa root@$HOST
expect -exact "Enter... (3 Replies)
Discussion started by: John Wilson
3 Replies
9. Shell Programming and Scripting
i have defined a function ln_s() for customizing the ln command in script1.sh.
more script1.sh
echo "Starting Execution"
./script2.sh
echo "End of Execution"
ln_s(){
] && return
ln -s "$1" "$2"
}
My script1.sh executes another script2.sh which has the following entry
more script2.sh... (12 Replies)
Discussion started by: mohtashims
12 Replies
10. Programming
Ahoy friends.
Currently i got a bash script running to manage my minecraft servers.
All of them are stored in /home/minecraft_servers directory.
Using my script im able to start a server (e.g. ./minecraft start ftb_continuum) because server name and server name are the same.(e.g.... (2 Replies)
Discussion started by: Knogle
2 Replies
JOIN(1) User Commands JOIN(1)
NAME
join - join lines of two files on a common field
SYNOPSIS
join [OPTION]... FILE1 FILE2
DESCRIPTION
For each pair of input lines with identical join fields, write a line to standard output. The default join field is the first, delimited
by whitespace. When FILE1 or FILE2 (not both) is -, read standard input.
-a FILENUM
also print unpairable lines from file FILENUM, where FILENUM is 1 or 2, corresponding to FILE1 or FILE2
-e EMPTY
replace missing input fields with EMPTY
-i, --ignore-case
ignore differences in case when comparing fields
-j FIELD
equivalent to '-1 FIELD -2 FIELD'
-o FORMAT
obey FORMAT while constructing output line
-t CHAR
use CHAR as input and output field separator
-v FILENUM
like -a FILENUM, but suppress joined output lines
-1 FIELD
join on this FIELD of file 1
-2 FIELD
join on this FIELD of file 2
--check-order
check that the input is correctly sorted, even if all input lines are pairable
--nocheck-order
do not check that the input is correctly sorted
--header
treat the first line in each file as field headers, print them without trying to pair them
-z, --zero-terminated
end lines with 0 byte, not newline
--help display this help and exit
--version
output version information and exit
Unless -t CHAR is given, leading blanks separate fields and are ignored, else fields are separated by CHAR. Any FIELD is a field number
counted from 1. FORMAT is one or more comma or blank separated specifications, each being 'FILENUM.FIELD' or '0'. Default FORMAT outputs
the join field, the remaining fields from FILE1, the remaining fields from FILE2, all separated by CHAR. If FORMAT is the keyword 'auto',
then the first line of each file determines the number of fields output for each line.
Important: FILE1 and FILE2 must be sorted on the join fields. E.g., use "sort -k 1b,1" if 'join' has no options, or use "join -t ''" if
'sort' has no options. Note, comparisons honor the rules specified by 'LC_COLLATE'. If the input is not sorted and some lines cannot be
joined, a warning message will be given.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report join translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Mike Haertel.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
comm(1), uniq(1)
The full documentation for join is maintained as a Texinfo manual. If the info and join programs are properly installed at your site, the
command
info coreutils 'join invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 JOIN(1)