But, what if I have to only copy 2nd and 3rd column from file2 to 1st and second columns in file1.
How do I change the code? Is there a way to see all the column numbers in the code, so that when I work on my original data with thousands of columns, I could easily go back and forth?
In that case use a for loop in your awk program:
Modify the for loop indices as per your requirement.
Hi,
I want to replace the contents of a file.I tried using :
sed 's/01514581/01514582/' $p
where 01514581 is the original value
01514582 is the replaced value
$p is the file name (captured in a variable)..
The output does not recognise $p
If you give :
sed... (2 Replies)
Hi
I have a file that looks like this:
Line 0
animal elephant
Line 1
animal elephant
Line 2
animal elephant
Line 3
animal elephant
What i am aiming to do is with a script and an input value of... (6 Replies)
From the existing file, I need to replace specific contents possibly with var every time when the user changes the var.
e.g the contents in the file file.txt is 'My name is $n and I am $y years old' and every time user changed the var outside the file, the contents of the file should be created... (4 Replies)
Hi All,
Need help on this
I have 2 files
one file file1 which has several entries as :
define service{
hostgroup_name !host1,!host5,!host6,.*
service_description check_nrpe
}
define service{
hostgroup_name !host2,!host4,!host6,.*
service_description check_opt
}
another... (2 Replies)
Hi,
I am facing issue while reading data from a file in UNIX. my requirement is to compare two files and for the text pattern matching in the 1st file, replace the contents in second file by the contents of first file from start to the end and write the contents to thrid file.
i am able to... (2 Replies)
How can i replace the contents in a particular line of a file.
<FOLDERMAP SOURCEFOLDERNAME="FFCB-2012" SOURCEREPOSITORYNAME="Repo_DEV" TARGETFOLDERNAME="TEST" TARGETREPOSITORYNAME="Dev_Repo"/>
For Example I want to replace the SOURCEREPOSITORYNAME="Repo_DEV" to... (3 Replies)
Hello,
I need help to replace a value by a new one.
I've got a script, that will get directory size in ko, then write the size value return in a log file :
The patch is given in crontab, and use with $1 in the script.
I am looking for help to replace, after: the old value without to... (6 Replies)
Hello,
I have two files: file1 and file2
file1 has the following info:
---
host: "localhost"
port: 3000
reporter_type: "zookeeper"
zk_hosts:
- "localhost:2181"
file2 contains an IP address (1.1.1.1)
What I want to do is replace localhost with 1.1.1.1, so that the... (4 Replies)
Discussion started by: Jay Kah
4 Replies
LEARN ABOUT OSX
comm
COMM(1) BSD General Commands Manual COMM(1)NAME
comm -- select or reject lines common to two files
SYNOPSIS
comm [-123i] file1 file2
DESCRIPTION
The comm utility reads file1 and file2, which should be sorted lexically, and produces three text columns as output: lines only in file1;
lines only in file2; and lines in both files.
The filename ``-'' means the standard input.
The following options are available:
-1 Suppress printing of column 1.
-2 Suppress printing of column 2.
-3 Suppress printing of column 3.
-i Case insensitive comparison of lines.
Each column will have a number of tab characters prepended to it equal to the number of lower numbered columns that are being printed. For
example, if column number two is being suppressed, lines printed in column number one will not have any tabs preceding them, and lines
printed in column number three will have one.
The comm utility assumes that the files are lexically sorted; all characters participate in line comparisons.
ENVIRONMENT
The LANG, LC_ALL, LC_COLLATE, and LC_CTYPE environment variables affect the execution of comm as described in environ(7).
EXIT STATUS
The comm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO cmp(1), diff(1), sort(1), uniq(1)STANDARDS
The comm utility conforms to IEEE Std 1003.2-1992 (``POSIX.2'').
The -i option is an extension to the POSIX standard.
HISTORY
A comm command appeared in Version 4 AT&T UNIX.
BUGS
Input lines are limited to LINE_MAX (2048) characters in length.
BSD January 26, 2005 BSD