I use the following regular expression to get the text between /* and */:
(/\* )+(.+)(\*/) This method is good when this only needs to happen once, for example, when the entire string is like
Regular expression and wildcard introduction
Wildcards and regular expressions 1. Wild-card patterns are generally used to match file names, which are parsed by the shell, and are generally used for find (file search), ls (directory), cp (Cop
How to delete a particular row that appears in the Vim file
I want to delete a line: this is an example, it appears multiple times in the file. What should I do?
Thank you,
AI Lisa
:g/This is an example/d
I want to delete a line: this is a
Shell string stitching
test.sh
#!/bin/bash
your_name=”runoob”
# Use double quotes to splice
greeting=”hello, “$your_name” !”
greeting_1=”hello, ${your_name} ! ”
echo $greeting $greeting_1
# Use single quotes
SHELL variable foundation detailed
1. Introduction to variables Variables are places where data is temporarily stored and data tags. The stored data exists in the memory space, and the data corresponding to the variable can be retri
Use of the function in the shell
function is a script code block, you can name it yourself, and you can use this function anywhere in the script. If you want this function, just call the name of the function. The advantage of usin
Mariadb Windows installation
1. Copy the installation file to the server < /p>
[client]
port=3307
[mysql]
default-character-set=utf8
[mysqld]
port=3307
#Program installation directory
basedir=E:/mariad
Regular expressions – Shielding strings in Perl using mask strings
I have a string like’xxox-x’, and I want to block every line in the file as follows:
> x Ignored (or just set to a known value)
> o stay the same
> – is a variable length field that can keep
Bash or Python for changing file spacing
I have a set of 10,000 files. In all of them, the second line looks like:
AAA 3.429 3.84 So there is only one space between AAA and the other two columns (required). The rest of the lines on
Regular expression – how to search for six letters with letters in alphabetical order
I recently created a Perl script to search for words starting with D and E with the following code:
$infile =’words.txt’;
open(IN, $infile);
$count = 0;
while ($word = ) {
chomp($word );
if (