1. Count the number of digits in the document
2. Compare the differences between the files of the two machines
#!/bin/bash
dir=/data/web
[ -f /tmp/md5.list] && >/tmp/md5.lis
Category: OS
Operating System (Operating System, referred to as OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on the “bare metal”. Any other software must be supported by the operating system to run .
Regular expression – you need to know the logic behind several regular expressions
I have a code as
$wrk = OC192-1-1-1;
@temp = split (/-/, $wrk);
if ($temp1[3] =~ /101 || 102 /)
{
print ” yes”;
} else {
print “no”;
} Output:
yes I need to know why this is p
Shell Programming Foundation-3
1. while loop
Syntax structure: while condition; do……; done
1) Infinite loop
While:
do
command
done
2) Endless loop
While 1
Do
command
Regular expression – AWK for separating words by underscore
I use awk very badly, but I know it is very useful for contingency operations.
I have a form file:
JohnSmith_name 3.4
KellySears_name 5.7
RonaldBay_name 1.2
RayShendor_name 2.8 I want
The most complete shell script statement syntax (super detailed)
Blog post outline:
Don’t talk nonsense, just use the grammar example:
Requirement①:
first name and 2. last name, and finally displayed on the screen: “Your full name is:” content:
Shell exercise -15
Question requirements
Write a shell and see if there are custom users (ordinary users) in your Linux system. If so, how many?
Core points
centos6 uid>=500
eentos7 uid>=1000
awk -F’:”
Windows 2008 R2 A authentication error occurs. Unable to connect to local security agencies
(1) Symptoms:
1. I cannot log in to the windows server remotely after following the new patch.
Prompt:
(2) Reason for failure:
Usually, this error message points to the prohibition The remo
Window display control in PYQT5
setWindowState(state) #Set window state
Qt.WindowNoState stateless-normal state
Qt.WindowMinimized minimize
Qt. WindowMaximized maximize
self.setWindowState(Qt.WindowMaximiz
Shell Training Day6 8.20
shell
See 100 linux shell questions.
Function to reduce duplication of code.
Shell is a collection of system commands
The first line starts with #!/bin/bash
#!/bin/bash
echo “123”
w
ls
Sp
PowerShell foundation
Windows powershell is a command-line shell and scripting environment, which is built into the operating system of win7 and above, so that command-line users and script writers can take advantage of