cut command in unix

Write Cache command--syncAfter starting the UNIX system with the reboot command, the system prompts for an error message and some applications do not work correctly. After careful examination of the system files, and compared with the initial correct backup, found that some files are really destroyed, and can not find the cause of the file corruption, and finally

Let's start a new year with these unix/linux command techniques to improve productivity at the end. I've been looking for it for a long time and I'm going to share it with you now. >/path/to/file.log # or use the following format : >/path/to/file.log # then delete it Rm/path/to/file.log How do I record terminal output? Try using the script command line

One of people's dissatisfaction with shell commands in UNIX systems is that their form does not always prompt their functions. For example, to identify the grep function of Unix commands, you can only learn about them in advance, or depending on people's ingenuity and familiarity with the Unix editor ed. The literal form of this

Getting started with C Programming in Unix/Linux (39) shell Command System Management, getting started with shellDf command This function is used to detect disk space usage and free space in a file system. It displays the usage of nodes and disk blocks in all file systems. The command format is as follows:Df [Option]

under the use of Linux/unix, often use the text interface to set up the system or operating system, the author himself in the process of work is also constantly in touch with this command, so for This special brewing, preparation, began the writing of this article. This paper mainly records some of their usual linux/unix under the operation of commands, record an

From:http://linux.chinaunix.net/techdoc/system/2007/11/23/973027.shtmlIn the use of Linux/unix command-line terminal, sometimes encounter keyboard backspace, delete keys, home keys, direction keys, such as do not listen to the phenomenon:Press the BACKSPACE key, may pop up a ^?Press the DELETE key, but come out a ^[[3~Press the home key, but come out a ^[[1~Press the left ARROW key, but come out a ^[[d.....

using Linux/unix next. Often use the text interface to set up the system or the operating system, the author is in command of this aspect of the process of continuous contact. Therefore, in order toThis special brewing, preparation, began the writing of this article. This paper mainly records some of their usual linux/unix under the operation of commands, records

Let's start the new year with these unix/linux command tricks to improve productivity at the end. I have been looking for a long time to share with you now.Delete a large fileI have a large 200GB log file on the production server that needs to be deleted. My RM and LS command has crashed and I'm worried that this is caused by huge disk IO, to delete this large fi

Write Cache command--sync After starting the UNIX system with the reboot command, the system prompts for an error message and some applications do not work properly. After careful examination of system files, and the initial correct backup to compare, found that some files are indeed corrupted, toss and turn to find the cause of the file is destroyed, and fina

ArticleDirectory Linux Command Line cheat sheets Solaris cheat sheets Debian/Ubuntu cheat sheets Package management cheat sheets UNIX cheat sheets Bash cheat sheets Awk cheat sheets Ed cheat sheets Sed cheat sheets Gdb debugger cheat sheets The Linux/Unix System in command lin

Grep command series: how to find files based on the file content in UNIX To complete the course assignments, I wrote a lot of C-language code and saved them as/home/user/c/*. c and *. h. In the UNIX shell window, how can I find a file through a string or word (for example, the function name main? You need to use the following tools: [A] grep

Title: SED/awk equivalent code to Unix Commands From: www.chinaunix.net thank you very much Equivalent code of SED and Unix commands: -------------------------------------------------------------------------------cat | sed ':'cat -s | sed '/./,/^$/!d'tac | sed '1!G;h;$!d'grep | sed '/patt/!d'grep -v | sed '/patt/d'head | sed '10q'head

The Linux/Unix System in command line mode is always confusing to cainiao. We have published a set of Linux Command lines, but it does not seem perfect.Today, we are bringing you a list of command lines that collect Linux/Unix systems from various websites. The list is a col

Unix system commands a lot of, below explain Stty. This command is a common command used to change and print terminal line settings. 1, Stty (set TTY, setting TTY) command to check and modify the current registered terminal communication parameters. The UNIX system provide

A Unix operating system may paralyze the system after a sudden power failure. At this point, the Unix operating system is not as good as that of Microsoft. If a power failure occurs, the Windows operating system will automatically detect and restore the system when it is restarted, but Unix won't... A Unix operating sy

Commands for interchange of date, time, and Unix timestamps in Linux Command lines At work, you often need to get the current Unix timestamp or convert the given timestamp to a date format that we can recognize, on the linux Command Line terminal, you can easily solve the problem by using several commands. 1. convert a

The Iconv command is a file-encoded reload tool that runs on the Linux/unix platform. When we look at the text file in the Linux/unix system shell, we often find that the file is garbled in Chinese, this is due to the encoding of the text file and the current operating system settings, which can be encoded by using the ICONV conversion, to solve the garbled probl

When using a git command that can has a large amount of output (like git log , git diff or git blame ), Git opens the command outpu T in our terminal "pager"; On most modern unix-based systems, the default pager would be ' less '. Learning a few less commands would help us deal with this git command output that opens

As a widely used debugger under Unix/linux, GDB not only provides rich commands, but also introduces scripting support: one for existing scripting language support, such as Python, where users can write Python scripts directly, and GDB calls the Python interpreter to execute The other is a command script, in which the user can write GDB commands that GDB has provided or customize, and then run by GDB. In th