If you don't have vim you can do with standard vi but it requires two replaces. First puts extra blank field in the 2nd last position, and 2nd populates year for those that have it:
You could get a little more specific and ensure date is only in 4th field, but your original replace didn't seem to worry about this. Perhaps 4 digit numbers never appear in fields 1-3?
I am trying to substituted a variable to a file using sed. However, the value of that variable is not being substituted. Here is an example of my code.
lf='
'
v_whole="${1} ${2} ${3} $lf"
cp ${IPPDIR}/ctl/fax_sub_text_a.${4}.${5}.txt... (1 Reply)
In a file I want to globally change a "|" charater by a new line character.
I am using the command
1,$s/\|/??/g
Can anybody say what should I put in place of ?? in the above command? (3 Replies)
Hi ,
I am stuck up in the below scenario:-
I need to read a file name (eg A.txt) name frm another file (eg B.txt) and then I need to search for a particular expression in A.txt and substitute it with another expression.
How can I use SED inside SHELL Scripting and command prompt as... (2 Replies)
Hi ,
I am stuck up in the below scenario:-
I need to read a file name (eg A.txt) name frm another file (eg B.txt) and then I need to search for a particular expression in A.txt and substitute it with another expression.
How can I use SED inside SHELL Scripting and command prompt as well to... (1 Reply)
Hi,
What is the actual difference between these two? Why the following code works for process substitution and fails for command substitution?
while IFS= read -r line; do echo $line; done < <(cat file)executes successfully and display the contents of the file
But,
while IFS='\n' read -r... (3 Replies)
All,
I have this text document that contains a listing(See below).
What i would like to ask is how i could extract just the information i need which is the files name (CWS*****.***.gz)
If anyone has any suggestions i would be very grateful. I am sure its relatively simple but i just... (6 Replies)
Hello, I have a file with 10,000+ records which look like this:
Image3992170.tif 4/21/200811:42:09AM 3,373.13KB
Image3993265.tif 4/11/20087:17:58PM 2,369.72KB
Image3996764.tif 5/2/200811:01:28AM 2,155.87KB
Image3997700.tif ... (4 Replies)
How do i substitute ' with space in a file using sed or awk
i am getting the following two scenarios
1) xyz'd with xyz d
if i use
sed 's/xyz\\\'d/xy z/g'
it is taking ' after \ as closing expr for substitution
2) xyz';d with xyz d
please advice (8 Replies)
Hi experts,
Could someone help me how to figure out the following substitution?
I copied and pasted a column of names from an Excel file into another file in vi. The column of data has last names with dash (hyphens) and apostrophes. My goal is to do the following:
1) remove the apostrophes... (10 Replies)
I am trying to do some substitutions using the substitution operator (:%s) in a text file.
I want to replace all A1, A2, A3.......A100 in my text file.
I used :%s/A2/SAE/g successfully until A9 but when I use A1, all the A11 to A19 is changed. How do I specify the exact match here? (8 Replies)
Discussion started by: Kanja
8 Replies
LEARN ABOUT MOJAVE
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