Hi,
I wrote a script which extracts data from 2 tables (joining the tables together) and outputs the fields to a csv file.
the output may look something like
scenario 1: a,b,c,d,1,2,3,4 or
scenario 2: a,b,c,d,,,,
now, in the second scenario, there are some empty fields at the end of... (3 Replies)
hi all,
i am having a script file which contains lot of fields and commands.
let's say i have the following word (example1) spread all over the script in every place, how can i replace it with the word (example2)?....the only way i know is to use to either delete the word (example1) and write... (1 Reply)
Ok here's my pickle. I have a file in which every line must be the same length. Each field within the line is a certain length. None of these can be changed. What I need to do is look at a specific field within this file, let's say it starts with character 30 and ends with 50. If this field is... (3 Replies)
Hi, can anyone help me? This is what i want to do....I have a string
UNB+UNOA:1+OOCLIES+RTTC+080408:0358+1'
and i want to replace the "1" at the end (that specific field only) to 00001 such that the new output will be like this
UNB+UNOA:1+OOCLIES+RTTC+080408:0358+00001'
i tried using... (5 Replies)
Wondering if anybody can help with changing the output of a field. I'm needing to change the output of a field in this file:
User Process ID Time Active Licences Type
ChangeAdmin (Phys-agsdev/19353 212), start Wed 1/21 6:30 (linger: 1800)
u414013 (Phys-agsdev/19353 1491), start Wed 1/21 12:54... (5 Replies)
Hi,
I know there are lots of threads on replacing text within files, usually using sed or awk. However, I find it hard to adapt examples that I found to my specific case. I am kind of new to UNIX and have hard times learning the syntax either for sed or awk so I would appreciate any help. Here's... (5 Replies)
Hi everybody,
I'm trying to replace the $98 field with "T" if the last field (108th) is T
I've tried
awk 'BEGIN{OFS=FS="|"} {if ($108=="T")sub($98,"T"); print}' test.txt
but that doesn't do anything
also tried
awk 'BEGIN{OFS=FS="|"}{ /*T.$/ sub($98,"T")} { print}' test.txt
but... (2 Replies)
Hi All,
I have a file yum.conf that has a field called gpgcheck
this field sometimes has a value of 0 gpgcheck=0 and at other times it has a 1.
I need to check the value and if it is a 1 change it to a 0
any ideas?
thanks,
Gartie (1 Reply)
Hi All,
I am very new to shell scripting and tried to search this in the forum but no luck.
Requirment:
I have an input file which is comma separated. I need to replace the value in 4th column with another value. This has to happen for all the lines in the file.
Sample data:
Input... (2 Replies)
Hi Team,
In the below input file, if I have the value 23,24,25 then for those records 1st field value should get updated from "a" to "b". I also want to pass these values in file as input as it can be done dynamically. Tried awk commands but not getting desired output.Using SunOS 5.10 version.... (14 Replies)
Discussion started by: weknowd
14 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