05-01-2008
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I've been searching around here and other places, but can't put this together...
I've got a unique list of words in file 1 (one word on each line).
I need to delete each line in file2 that begins with the word in file1.
I started this way, but want to know how to use file1 words instead... (13 Replies)
Discussion started by: michieka
13 Replies
2. Shell Programming and Scripting
11132
13069
11137
11142
13070
Can I use grep command to exclude all lines beginning with 13?
I dont want to use grep -v 13 as potentially there will be a number with something like 11013 that I would exclude in error.. (2 Replies)
Discussion started by: frustrated1
2 Replies
3. Shell Programming and Scripting
I have a file that contains a great number of lines, let's say 183 lines, and I want to add: echo " to the beginning of each line. What is the easiest way to do it?
Tx (9 Replies)
Discussion started by: Ernst
9 Replies
4. Shell Programming and Scripting
Hi!
I store some data obtained with grep or awk in a file. The problem is that some lines have white space at the begining :
line1
line2
line3
I use something like
grep WORD INFILE >> OUTFILE
awk >> OUTFILE
I would love if it were possible to remove the white whitout parsing the... (4 Replies)
Discussion started by: tipi
4 Replies
5. Shell Programming and Scripting
I have a large file which reads like this:
fixed-address 192.168.6.6 {
hardware ethernet 00:22:64:5b:db:b1;
host X;
}
fixed-address 192.168.6.7 {
hardware ethernet 00:22:64:5b:db:b3;
host Y;
}
fixed-address 192.168.6.8 {
hardware ethernet 00:22:64:5b:db:b4;
host A;
}... (4 Replies)
Discussion started by: ksk
4 Replies
6. Solaris
How can we delete all the blank spaces in the beginning of some lines in a text in vi?
Thanks, (2 Replies)
Discussion started by: Pouchie1
2 Replies
7. Shell Programming and Scripting
I'm trying to extract all the lines between 2 strings (including the lines containing the strings)
To make the strings unique I need to include white space if possible. I'm not certain how to do that.
sed -n '/ string1 /,/string2/p' infile > outfile & (4 Replies)
Discussion started by: dcfargo
4 Replies
8. Shell Programming and Scripting
How can I delete spaces at the begining of all lines of my file ? (2 Replies)
Discussion started by: Sara_84
2 Replies
9. Shell Programming and Scripting
hi I am trying to use SED to replace the line matching a pattern using the command
sed 'pattern c\
new line
' <file1 >file 2
I got two questions
1. how do I insert a blank space at the beginning of new line?
2. how do I use this command to execute multiple command using the -e... (5 Replies)
Discussion started by: piynik
5 Replies
10. Shell Programming and Scripting
Hello people,
I am trying with sed to insert some text at the beginning of each odd line of a file but no luck. Can you please help. Awk is also suitable but I am not very familiar with it.
Thank you in advance for any help. (7 Replies)
Discussion started by: drbiloukos
7 Replies
LEARN ABOUT DEBIAN
plan9-join
JOIN(1) General Commands Manual JOIN(1)
NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the
standard input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO
sort(1), comm(1), awk(1)
BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)