Hi
Let say a flat file contains 1000 lines. The cursor is at the 530 line number.
Now I like to delete all the line at one ahot. how it can be done? (2 Replies)
Hi,
I have two files, in which the second file has exactly the same contents of the first file with some additional records. Now, if I want to remove those matching lines from file2 and print only the extra contents which the first file does not have, I could use the below unsophisticated... (3 Replies)
So, this issue is driving me nuts! I was hoping to get a lending hand here...
I have 2 files:
file1.txt contains:
this is example1
this is example2
this is example3
this is example4
this is example5
file2.txt contains:
example3
example5
Basically, I need a script or command to... (4 Replies)
I have a file, in which a single record spans across multiple lines,
File 1
====
14|\n
leave request \n
accepted|Yes|
15|\n
leave request not \n
acccepted|No|
I wanted to remove the '\n charecters. I used the below code (foudn somewhere in this forum)
perl -e 'while (<>) { if... (1 Reply)
Good day all.
Using basic UNIX/Linux tools, how would you delete a line based on a character found in column 1?
For example, if the CITY name contains an 'a' or 'A', delete the line:
New York City; New York
Los Angeles; California
Chicago; Illinois
Houston; Texas
Philadelphia;... (3 Replies)
for dir in BKP/*/
do
echo You are in :$dir
done
O/P
--
BKP/201448/
BKP/201449/
BKP/201450/
BKP/201451/
BKP/201452/
BKP/201501/
BKP/201502/
BKP/201503/
BKP/201504/
BKP/201505/
BKP/201506/
BKP/201507/ (3 Replies)
I am trying to use the two files shown below to either remove or rename contents in one of those files. If in file1.txt $5 matches $5 of file2.txt and the value in $1 of file1.txt is not "No Match" then that value is substituted for all values in $5 and $1 of file2.txt. If however in $1 ... (5 Replies)
hello Friend,
In hostgroup file, i have define lots of hostgroups. I need to remove few of them without manually editing file. Need script or syntax.
I want to search particular on hostgroup_members and delete hostgoup defination of it.
for example.
define hostgroup{
hostgroup_name... (8 Replies)
Discussion started by: ghpradeep
8 Replies
LEARN ABOUT LINUX
join
JOIN(1) User Commands JOIN(1)NAME
join - join lines of two files on a common field
SYNOPSIS
join [OPTION]... FILE1 FILE2
DESCRIPTION
For each pair of input lines with identical join fields, write a line to standard output. The default join field is the first, delimited
by whitespace. When FILE1 or FILE2 (not both) is -, read standard input.
-a FILENUM
print unpairable lines coming from file FILENUM, where FILENUM is 1 or 2, corresponding to FILE1 or FILE2
-e EMPTY
replace missing input fields with EMPTY
-i, --ignore-case
ignore differences in case when comparing fields
-j FIELD
equivalent to `-1 FIELD -2 FIELD'
-o FORMAT
obey FORMAT while constructing output line
-t CHAR
use CHAR as input and output field separator
-v FILENUM
like -a FILENUM, but suppress joined output lines
-1 FIELD
join on this FIELD of file 1
-2 FIELD
join on this FIELD of file 2
--check-order
check that the input is correctly sorted, even if all input lines are pairable
--nocheck-order
do not check that the input is correctly sorted
--header
treat the first line in each file as field headers, print them without trying to pair them
--help display this help and exit
--version
output version information and exit
Unless -t CHAR is given, leading blanks separate fields and are ignored, else fields are separated by CHAR. Any FIELD is a field number
counted from 1. FORMAT is one or more comma or blank separated specifications, each being `FILENUM.FIELD' or `0'. Default FORMAT outputs
the join field, the remaining fields from FILE1, the remaining fields from FILE2, all separated by CHAR.
Important: FILE1 and FILE2 must be sorted on the join fields. E.g., use ` sort -k 1b,1 ' if `join' has no options, or use ` join -t '' '
if `sort' has no options. Note, comparisons honor the rules specified by `LC_COLLATE'. If the input is not sorted and some lines cannot
be joined, a warning message will be given.
AUTHOR
Written by Mike Haertel.
REPORTING BUGS
Report join bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report join translation bugs to <http://translationproject.org/team/>
COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO comm(1), uniq(1)
The full documentation for join is maintained as a Texinfo manual. If the info and join programs are properly installed at your site, the
command
info coreutils 'join invocation'
should give you access to the complete manual.
GNU coreutils 8.5 February 2011 JOIN(1)