Hi I'm in the need of a script that basically takes two files and generates a 3rd. It reads from fileA and fileB and copies lines from fileA if they start by a word of fileB.
for example
fileA
The dog is beautful
Where is your cat
Why are you sad?
Help me!
fileB
The
Where
tree
dog... (4 Replies)
I have one request, First it has to create one file and in that file
it has to include some lines based on user request.
Suppose user requested 10, then script needs to add 10 lines like below
QAEVO_A1|A1
QAEVO_A2|A2
QAEVO_A3|A3
QAEVO_A4|A4
QAEVO_A5|A5
QAEVO_A6|A6
QAEVO_A7|A7... (8 Replies)
I did a search before posting and couldn't find an example of what I need done. Anyway, I have a file called file1.txt, which has data like this:
File2.txt contains:
So what I need to do is from file1.txt find the first line M977 in file2.txt and replace the line below it with the line from... (4 Replies)
I am new to Linux and have a challenging task.
I have 3 data files, and need to do the following:
Go to line 31 of file 1, delete it
Read 1 line from file 2 and add in place of deleted line
Go to line 97 of file I delete it and then read the line 1 from file 2 and add in place of that... (2 Replies)
Hello All,
I want to copy some lines from one file to other with following condition.
Only lines between two specified strings should copy.
Example :-
"My First String "
Some_Other_String ....
Some_Other_String ....
Some_Other_String ....
"My Second String"
So only... (5 Replies)
Hi I want to find out those unique uids from the log file which have request and response.
The log file format is as follows. This log has other irrelevant lines too but each uid should have request and reponse, I need those uids only
2013-04-03 10:51:01,808 INFO <?xml version="1.0"... (4 Replies)
Hi all
I have a requirement
I need to copy only first 2 lines from a file of one location to another file of same location
I used to code as
cp head -2 abc 123
But i get the following error
cp: 0653-437 123 is not a directory.
The files used are
cat abc
ABCD
EFDG
TYUI (5 Replies)
Discussion started by: Priya Amaresh
5 Replies
LEARN ABOUT CENTOS
head
HEAD(1) User Commands HEAD(1)NAME
head - output the first part of files
SYNOPSIS
head [OPTION]... [FILE]...
DESCRIPTION
Print the first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With
no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-c, --bytes=[-]K
print the first K bytes of each file; with the leading '-', print all but the last K bytes of each file
-n, --lines=[-]K
print the first K lines instead of the first 10; with the leading '-', print all but the last K lines of each file
-q, --quiet, --silent
never print headers giving file names
-v, --verbose
always print headers giving file names
--help display this help and exit
--version
output version information and exit
K may have a multiplier suffix: b 512, kB 1000, K 1024, MB 1000*1000, M 1024*1024, GB 1000*1000*1000, G 1024*1024*1024, and so on for T, P,
E, Z, Y.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report head translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by David MacKenzie and Jim Meyering.
COPYRIGHT
Copyright (C) 2013 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
The full documentation for head is maintained as a Texinfo manual. If the info and head programs are properly installed at your site, the
command
info coreutils 'head invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 HEAD(1)