Hi,
Im trying to update some properties files with text from another file:
file1
user=xyz
file2
user=
after script
file2
user=xyz
Im using this reading the $QUARTZURL,ETC... from quartz.properties:
echo... (1 Reply)
Hi everyone,
Since the previous time I received help from unix.com I have been encouraged to learn more.
going through 1 of the articles(View Article) on sed I found, it pointed an interesting situation.
Suppose the text is :
Romeo and Ethel the Dancer Moves Audience to Tears.
I... (3 Replies)
Hi, I have a problem..
1) I have a file that contains the lines as below :
VRF-TM_DummyLab/mse02.lab,mse02.lab,ge-2/0/7.222
VRF-EMS_HUAWEI_MSAN_208/mse01.lab,mse01.lab,xe-1/0/0.208
2) I need a method to read this file, line by line
from :... (5 Replies)
I am trying to take the two line version of this:
mv myFile.txt myFile.txt.bak
sed 's/foo/bar/g' myFile.txt.bak > myFile.txt
and make it into a shell script with three parameters. First two parameters are the string and string replacement and the third is file. So far this is what I have... (5 Replies)
I have a input file which looks like this:
Value1=""
Value2=""
Value3=""
ListOfValues=" $Value1 $Value2 $Value3"
I have another program which computes the values ($val1, $val2, $val3). So if $val1 is 'A', $val2 is 'B' and $val3 is 'C', I should edit the input file so it will look like:... (0 Replies)
I have a input file which looks like this:
Value1=""
Value2=""
Value3=""
ListOfValues=" $Value1 $Value2 $Value3"
I have another program which computes the values ($val1, $val2, $val3). So if $val1 is 'A', $val2 is 'B' and $val3 is 'C', I should edit the input file so it will look like:... (6 Replies)
HI all,
These are examples of the original value from a variable
$abc can be
FastEthernet1/0
GigabitEthernet3/1
Serial1/0
If $abc is FastEthernet*/* (where * can be any number), replace $abc value to fa*/* (same number as the original value). GigabitEthernet becomes ga*/* and Serial... (2 Replies)
The code below gives the string "test1.txt" even though "tessdsdt" does not match "test1.txt". I would like to return "" if there is no match and return some kind of error that I can capture and decide what to do.
echo test1.txt | awk -v src="tessdsdt" -v dst="test" '{sub(src,dst); print}' (16 Replies)
hello everybody there, I'm a new bash shell programmer and I'm dealing with a problem.
To start, I have a file with a number of string lines which may contain a particular string or not. I have to write a code that identifies the line containing one particular string and keeps it, but also writes... (10 Replies)
i'm trying to figure out the easiest way to replace a string:
pineapple pineapple-reg
basketball basketball-reg
football foot-reg-ball
i'm storing the above in a file called wordstoreplace.txt
for each line above, the word in the first column is to be replaced by the word in the second... (4 Replies)
Discussion started by: SkySmart
4 Replies
LEARN ABOUT 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 /adm/users | join -t: -a 1 -e "" - bdays
Add birthdays to password information, leaving unknown birthdays empty. The layout of is given in users(6); bdays contains sorted
lines like
tr : ' ' </adm/users | 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
/sys/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)