How to replaces a value in a file after a particular string using perl?
I need to replace the value of notifications_enabled to 0 if the value already set to 1 and vice versa(not the other values and spaces remain same after the value changed). I tried the below program for that. Can any one help me out.
file:test.cfg
script:
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Please use code tags next time for your code and data.
Last edited by Scott; 01-30-2013 at 09:01 AM..
Reason: vbe: code tags - format... Using code tags preserve the format you know...; Scott: Removed poll
Hi All,
I need to search for a string in a file that I've opened and base a decision on the result. The logic is this:
"if the word 'Shared' appears on the first line then
do this on the whole file
else
do this on the whole file
"
The code I currently have isn't working:... (4 Replies)
Looking for a bit of help. I need to search for a string of words, but unfortunately these words are located on separate lines.
for example the text output is:
United
Chanmpions
Ronaldo
Liverpool
Losers
Torres
and my script code is
print("DEBUG - checking file message");
while... (15 Replies)
Hi,
This is the first time playing around with perl and need some help.
Assuming if i have a line of text that looks like this:
Date/Time=Nov 18 17:12:11;Device Name=192.168.1.1;Device IP=192.168.1.1;Device Class=IDS;Source IP=155.212.212.111;Source Name=UNKNOWN;Source Port=1679... (3 Replies)
Is it possible, Using Perl script, to exit the program, when I get the first occurrence of a string. For eg, if I get a string "break" in a file (during parsing), i want to exit !
I tried using "filehandle". giving the string and file-name as commandline arguments. (3 Replies)
Hi All,
The below code successfully tails the logfile.log file and colors every word "ERROR" in RED, thanks to the Perl statement below.
However, would anyone know how to append 1 additional search/replace to the Perl statement below, to color the word "SUCCESS" in GREEN (using ANSI \e
... (3 Replies)
Hi Guys
In perl how can i look for a string in side a file and return something if it exists
a little bit of background i have made a wrapepr for a program but in order for the program to work i need to modify a file first, i want to stick something in the wrapper that will tell if the sting... (1 Reply)
Hi
I would like to read a file using perl and search for a string (last entry). Then read that into an array and do further grep
File content for ex:
comp=a,value=30,runtime=12,type=lic
comp=d,value=15,runtime=2,type=lic
comp=a,value=90,runtime=43,type=lic... (1 Reply)
Dear all,
I have a number of files and each file has two sections separated by a blank line. At the top section, I have lines which describes the values of the alphabetical characters,
# s #; 0.123
# p #; 12.3
# d #; -2.33
# f #; 5.68
<blank line>
sssssss
spfdffff
sdfffffff
Now I... (4 Replies)
I have file which contains a huge amount of data. I need to search the pattern Message id. When that pattern is matched I need to get abcdeff0-1g6g-91g3-1z2z-2mm605m90000 to another file.
Kindly provide your input.
File is like below
Jan 11 04:05:10 linux100 |NOTICE... (2 Replies)
Hello Forum.
I have a file called abc.sed with the following commands;
s/1/one/g
s/2/two/g
...
I also have a second file called abc.dat and would like to substitute all occurrences of "1 with one", "2 with two", etc and create a new file called abc_new.dat
sed -f abc.sed abc.dat >... (10 Replies)
Discussion started by: pchang
10 Replies
LEARN ABOUT XFREE86
replace
REPLACE(1) MySQL Database System REPLACE(1)NAME
replace - a string-replacement utility
SYNOPSIS
replace arguments
DESCRIPTION
The replace utility program changes strings in place in files or on the standard input.
Note
The replace utility is deprecated as of MySQL 5.7.18 and is removed in MySQL 8.0.
Invoke replace in one of the following ways:
shell> replace from to [from to] ... -- file_name [file_name] ...
shell> replace from to [from to] ... < file_name
from represents a string to look for and to represents its replacement. There can be one or more pairs of strings.
Use the -- option to indicate where the string-replacement list ends and the file names begin. In this case, any file named on the command
line is modified in place, so you may want to make a copy of the original before converting it. replace prints a message indicating which
of the input files it actually modifies.
If the -- option is not given, replace reads the standard input and writes to the standard output.
replace uses a finite state machine to match longer strings first. It can be used to swap strings. For example, the following command swaps
a and b in the given files, file1 and file2:
shell> replace a b b a -- file1 file2 ...
replace supports the following options.
o -?, -I
Display a help message and exit.
o -#debug_options
Enable debugging.
o -s
Silent mode. Print less information what the program does.
o -v
Verbose mode. Print more information about what the program does.
o -V
Display version information and exit.
COPYRIGHT
Copyright (C) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as
published by the Free Software Foundation; version 2 of the License.
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
at http://dev.mysql.com/doc/.
AUTHOR
Oracle Corporation (http://dev.mysql.com/).
MySQL 5.7 06/07/2018 REPLACE(1)