Hi Guru's,
I need to create 3 files with the contents "ABC" using single command.
Iam using:
echo "ABC" > file1.txt file2.txt file3.txt
the above command is not working. pls help me...
With Regards / Ganapati (4 Replies)
Hello,
I am a total linux newbie and I can't seem to find a solution to this little problem.
I have two text files with a huge list of URLS. Let's call them file1.txt and file2.txt
What I want to do is grab an URL from file2.txt, search file1.txt for the URL and if found, delete it from... (11 Replies)
Dear experts,
In a directory i have both *.TXT and *.txt files. I have a script-
for file in `ls *.txt`; do
mv $file /tmp/$file
How to list both *.txt and*.TXT file in one command so that script will move both .txt or .TXT whatever it find.
br//purple (4 Replies)
I have four files, I need to compare these files together.
As such i know "sdiff and comm" commands but these commands compare 2 files together. If I use sdiff command then i have to compare each file with other which will increase the codes.
Please suggest if you know some commands whcih can... (6 Replies)
HI All,
I am coding a shell script which will pick all the .csv files in a particular directoryand write it in to a .txt file, this .txt file i will use as a source in datastage for processing.
now after the processing is done I have to move and archive all the files in the .txt file to a... (5 Replies)
Hello,
I have an output file showing database sizes across the 3 environments that I use (LIVE, TEST & DEVELOPMENT).
I am trying to write a script that lets me know if the size of a db on one environment is different to its corresponding db on the other environments.
Here is an example... (4 Replies)
Hi
I greatly appreciate the forum and the people here very helpful :)
I could able to tar all the directories, sub dirs and the files. But unable to tar all the directories excluding the log and text files. Can anyone please advise the exact command to use for excluding .log and .txt?
PS:... (4 Replies)
Hello, i am new in Bash. Actually i have a directory : /home/resultfiles and inside i have these txt files:
531_1.out.res, 531_2.out.res , 531_3.out.res
532_1.out.res, 532_2.out.res , 532_3.out.res
533_1.out.res, 533_2.out.res, 533_3.out.res
All these txt files has this format :
num_q all... (3 Replies)
Discussion started by: nimpoura
3 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