sed 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

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.....

Our traditional method of writing programs is to create a single and fully functional program and try to provide functions that can fully meet the needs in a program. Such an approach will cause huge and complex programs, reduced maintainability. Generally, programs on windows have comprehensive functions and do not need to work with other programs. For example, if two programs require paging, they will develop a paging module, instead of seeking for the shared paging function. In the

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About ViVi is the most popular full-screen document editor in the Unix world, and almost any UNIX machine can saywill provide this software. Linux Of course also has, its VI is actually Elvis (copyright question), but they allAlmost. Familiar with the DOS of the document processing, may feel that VI is not good, Unix has developedMany newer, better-used clerical

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