Java EE Development of various types of resources download list, the history of the most complete IT resources, personal collection summary.
The directory of the four applications we use frequently in Linux is:/bin,/sbin,/usr/bin,/usr/sbin
Bin:Bin for the binary of the main place some of the system required to implement files such as: Cat, CP, chmod DF, DMESG, gzip, kill, LS, mkdir, more, Mount, RM, Su,
Python built-in functions (5) -- bin, python built-in function bin
English document:
bin(X)
Convert an integer number to a binary string. The result is a valid Python expression. IfXIs not a PythonintObject, it has to define__index__()Method that returns an integer.
Note:
1. convert an integer to a binary string
>>> B = bin
Yum Install a package, the following error occurred;-bash:/usr/bin/yum:/usr/bin/python:bad interpreter: No file or directory
See if Yum and Python rpm are installed and the system has yum and Python rpm packages installed.Check the system command:# ls-l/usr/bin/yum #yum命令存在-rwxr-xr-x 1 root root 801 June 16:54/usr/bin
Tags: root CTE File Security Ted pre need to suggest emptyBy default, MySQL will keep the mysql-bin file, so that at some point, the disk may be full, whether it is possible to delete these files, whether it can be safely deleted, is a problem. First of all, these files are MySQL log files, if not the master from the copy, it is basically useless, although useless, but not recommended to use the RM command to delete, it may be unsafe, the correct way
By default, MySQL will keep the mysql-bin file, so that at some point, the disk may be full, whether it is possible to delete these files, whether it can be safely deleted, is a problem.First of all, these files are MySQL log files, if not the master from the copy, it is basically useless, although useless, but not recommended to use the RM command to delete, it may be unsafe, the correct way is to remove the MySQL command.Mysql-U root-PEnterPassword:
During embedded development, we compile a *. s file and finally generate the binfile. The compilation command is roughly as follows:
Cc = arm-softfloat-Linux-GNU-gcc
LD = arm-softfloat-Linux-GNU-LD
Objcopy = arm-softfloat-Linux-GNU-objcopy
$ (CC)-G $ (cflag)-C boot. s # first generate the boot. s file to boot. o
$ (LD)-g-bstatic-T $ (ldfile)-ttext 0x12345600 boot. O -- start-group-map boot. map-O boot. elf # restart boot. O generate boot. elf, boot. ELF is usually an executable file, similar to
There are multiple types of Shell in Linux, the most common of which are Bourne shell (SH), c shell (CSH), and Korn shell (Ksh ). Each of the three shells has its own advantages and disadvantages. The Bourne shell is the original shell used by UNIX and can be used on every UNIX. Bourne shell is excellent in shell programming, but it is inferior to several other shells in dealing with user interactions. The default shell in Linux is the Bourne again shell, which is an extension of the Bourne shel
Often some people just start to learn to ask, "Do not know what the point of the desktop Recycling station icon is not seen, how to get out" now say how to pull out the Recycle Bin icon.
XP system or other system, try the following method:
1. Click Start to run and type "regedit" in "Open" to run Registry Editor;
2. Expand the registry sequentially to: Hkey_current_usersoftwaremicrosoftwindowscurrentversionexplorerhidedesktopiconsnewstartpanel;
QQ Photo Recycling station is not open:
When you open the qq-settings-contact-Dynamic Settings-photo Recycle Bin, found that the need for a separate password, then what is the independent password, if not how to retrieve it.
QQ independent password forgot how to do
1, login independent password Management page, select you want to retrieve the independent password, click Reset;
Password Management address: Http://aq.qq.com/cn2/ipwd/my
Today, I wrote a script in wingide. After it is uploaded to the server for execution, the following message is displayed:
-Bash:/usr/bin/autocrorder:/usr/bin/Python ^ m: Bad Interpreter: no such file or directory
Analysis:This is caused by different system encoding formats: The. Sh. py file edited in Windows may have invisible characters, so the preceding exception information is reported when executed in L
A Python script written under Windows system that is given permissions under Linux chmod +x xxx.py after execution./xxx.py run prompt: bash:/usr/bin/autocrorder:/usr/bin/python^m: Bad interpreter:no such file or directory
Analysis:
This is caused by different system encoding formats: the. Sh. py file that is edited in the Windows system may have invisible characters, so it will report the above exception
1. We now right-click on the space in the desktop, and then click "Personalized" in the pop-up menu as shown in the red box below.2. Then enter into the system personalization settings, we click "Change Desktop Icon" to enter, as shown in the following figure.3. Then we will find a lot of icons inside, just select the "Recycle Bin" The following figure shows:4. Now we can click "OK" like the other desktop icons.5. This way you will find that the deskt
Tags: manual foreign key processing disables the ALT feature Recycle Bin. NET numberRecycle Bin Concept Starting with Oracle 10g, a concept called the Recycle Bin (Recycle bin) was introduced. Its full name is called Tablespace Recycle Bin. The Recycle
In recent months, servers have always been on the machine frequently, leading to unguaranteed availability of the Bill lid. But it is also strange, when the server can be normally connected, Nginx also seems to be normal, but the PHP-FPM lost response. Later, I accidentally found out:Rootfs 7.7G 7.7G 0 100%/
The root directory is full! It is considered that there are too many logs and the logs are cleared. However, logs are full every week. It makes Bill's lid restless. Later, the/var was partit
Solve the problem of using ultra-large space bitsCN.com
In recent months, servers have always been on the machine frequently, leading to unguaranteed availability of the bill lid. But it is also strange, when the server can be normally connected, Nginx also seems to be normal, but the PHP-FPM lost response. Later, I accidentally found out:Rootfs 7.7G 7.7G 0 100%/
The root directory is full! It is considered that there are too many logs and the logs are cleared. However, logs are full every week.
In Windows Vista, many people only know that the recycle bin is a waste bin and spam files are placed. In fact, the recycle bin has other functions, but you are not good at discovering, next we will reveal the "secret" of the recycle bin under Vista ".★Use the "edit" menu of "recycle
The recycle bin mechanism can prevent permanent and accidental deletion of content.
1. There are two types of SharePoint 2013 recycle bin:End user recycle bin items and deleted from end user recycle bin ).
Ii. SharePoint 2013 recycle bin Configuration:
1. confirm that the user account executing this process is a member
I'll fix this myself.
To fix this problem in Windows Vista, follow these steps:
1. Click Start, and then click Control Panel.
2 Click Appearance and personalization, personalize, and change desktop icons in turn.
3. Click to select the Recycle Bin check box, and then click OK.
Subsequent steps
Check to see if this problem has been fixed. If it is fixed, you are done with this article. If it is not repaired, you can try the procedure in the worka
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