hello
I'm trying to batch copy files from one location to another. My script get's the output of a find command (i.e. find /disk3/jpm/seq -type f | xargs copy2boss)
The script works fine, except when filenames contains whitespace, backslashes and so on. Any hints? Is there another more accurate... (2 Replies)
Hello, Member or professional
need help how to count characters by line of file
Example of the file is here
cdr20080817164322811681txt
cdr20080817164322811txt
cdr20080817164322811683txt
cdr20080817164322811684txt
I want to count the characters by line of file . The output that I... (4 Replies)
Hi Friends
I have a file
like
sample1.txt
------------
10998909.txt
10898990.txt
1898772222.txt
8980000000000.txt
I need to take first 3 characters of each line in a file and i need to print it '
like loop
109
108
189
898 (7 Replies)
Dear community,
I'm quite a newbie with scripting, I have this problem:
I have a file with many lines and I want to copy the lines from 1 to N to file.1, from N+1 to 2N to file.2, and so on up to the end of the file
I have tried with something like this (N=43 in this example):
awk '{for... (2 Replies)
Dear Members,
For example i have a file which contains 10 lines as below:
123testing
gopjp
jg9459\
834789rh
fh456
47rf
497rvg
409748\
08ntr
i need the first three characters of the first line of the file.
if i use
cut -c 1-3 < sample.txtits displaying the 1st three... (8 Replies)
Hi,
I have a file with about 25 colums separated with '~', but few of the lines have extra tabs ('^') and new line characters ('$'). Is there a way I can delete those characters if they are anywhere before the 25th column in a line?
example:
CLUB000650;12345678;0087788667;NOOP MEMBER ... (4 Replies)
I am having a file(1234.txt) downloaded from windows server (in Ascii format).However when i ftp this file to Unix server and try to work with it..i am unable to do anything.When i try to open the file using vi editor the file opens in the following format ...
@
@
@
@
@
@
@
@... (4 Replies)
Hi All,
I need to copy a specific line from a file to another file.
lets suppose the line number 13 of a file
when I am writing the line number explicitly.. its working fine
sed -n '13p' afile > anotherfile
but, when inside a script, i am getting the line number value inside a variable... (4 Replies)
hi to all,
i am writing a simple file program in C which has to take a string of length n as input and match that input string with first n character of the line in file. if it does not match it has to compare with first n characters of next line. i am finding it difficult to know how exactly to... (2 Replies)
Discussion started by: ntrikoti
2 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