Yes that is correct, #3 uses exact strings, so it correctly identifies the right field, and the sub() in itself isn't the problem either, since iteration occurs over the fields and not over the key value pairs (therefore it can substititute multiple occurrences on one line), but the problem is in the replacement part, it was attempting to use sub() on the record instead of a direct assignment to the field, to avoid losing the file separators.
This adaptation should fix that:
Last edited by Scrutinizer; 06-16-2019 at 06:37 AM..
This User Gave Thanks to Scrutinizer For This Post:
Sir,
I want to check for the repation of a user address in a file i used || as my delimiter and want to check repetaip0n of the address that is mailid and then i have to use IMAP and all.
How can i do this...
I am in linux ...and my file is linux file.
... (5 Replies)
Hello,
Can someone kindy help me solve this problem..I am using SunOS shell script
I got a file A with following content:
This is my correct document. I wrote 111
This is my incorrect word , 222
This is my wrong statement 333
This is my correct document 444
This is my correct document 555... (9 Replies)
lets see if i can explain this in a good way.
im trying to replace some words in a file but i need to know what the words are that is beeing replaced. not sure if sed can do this.
file.name.something.1DATA01.something.whatever
sed "s/./.DATA?????/g"
need to know what the first . is... (2 Replies)
Hi all
I have a file with below content (content is variable whenever new product is launched). I need form a grep command like this
egrep "Unknown product|Invalid symboland so on"
How to do it using a script?
Unknown product
Invalid symbol
No ILX exch found
exceeds maximum size
AFX... (4 Replies)
I want to replace a certain pattern with the variable already defined.
e.g.
set path_verilog = /home/priya/bin/verilogfile
my file contents are :
verilog new
verilog is defined here verilog_path_comes
I am using the below command
sed 's/verilog_path_comes/'$path_verilog'/g' <filename>... (2 Replies)
Hi all,
I have 2 files:
species-names.txt
Abaca-bunchy-top-virus ((((Abaca-bunchy-top-virus((Babuvirus((Unassigned((Nanoviridae((Unassigned))))
Abutilon-mosaic-virus ((((Abutilon-mosaic-virus((Begomovirus((Unassigned((Geminiviridae((Unassigned))))... (2 Replies)
Hello,
I would like to change my setting in a file to the setting that user input.
For example, by default it is
ONBOOT=ON
When user key in "YES", it would be
ONBOOT=YES
--------------
This code only adds in the entire user input, but didn't replace it.
How do i go about... (5 Replies)
I have the file like this.
cat 123.txt
<p> <table border='1' width='90%' align='center' summary='Script output'> <tr><td>text </td> </tr> </table> </p>
I want to replace some tags and want the output like below. I tried with awk & sed commands. But no luck. Could someone help me on this?
... (4 Replies)
Hi All,
I need one help to replace particular words in file based on if finds another words in that file .
i.e.
my self is peter@king.
i am staying at north sydney.
we all are peter@king.
How to replace peter to sham if it finds @king in any line of that file.
Please help me... (8 Replies)
Discussion started by: Rajib Podder
8 Replies
LEARN ABOUT OSX
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 the either the form 'file_number.field', where file_number is a file number and field is a field number, or the form '0' (zero),
representing 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 file 1.
-2 field
Join on the field'th field of file 2.
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 file 1 and file 2.
-j1 field
Join on the field'th field of file 1.
-j2 field
Join on the field'th field of file 2.
-j field
Join on the field'th field of both file 1 and file 2.
-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. They should not be used in new code.
LEGACY DESCRIPTION
The -e option causes a specified string to be substituted into empty fields, even if they are in the middle of a line. In legacy mode, the
substitution only takes place at the end of a line.
Only documented options are allowed. In legacy mode, some obsolete options are re-written into current options.
For more information about legacy mode, see compat(5).
SEE ALSO awk(1), comm(1), paste(1), sort(1), uniq(1), compat(5)STANDARDS
The join command conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
BSD July 5, 2004 BSD