unix and linux commands

My Unix/Linux open lab: UNIX: SSH: opensolaris.unix-center.net User: yangze PWD: admin888 Linux: SSH ubuntu.unix-center.net User: yangze PWD: admin888 You can use securecrt to connect to a network, Simple Vim programming using PythonC LanguageProgramming is not very good. 1. How many servers does

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 h

Label:Using shell scripts to monitor and manage Oracle databases will greatly simplify the workload of DBAs, such as common monitoring of instances, monitoring of monitors, monitoring of alarm logs, backup of databases, automatic mailing of AWR report, etc. This article gives the use of shell scripts to monitor Oracle listeners under Linux. Reference for Linux Shell:Linux/

A timed task (cron job) is used to schedule commands that need to be executed periodically. With it, you can configure certain commands or scripts to run periodically over a set period of time. Cron is one of the most useful tools in Linux or Unix-like systems. The Cron Service (daemon) runs in the background of the system and continuously checks the/etc/crontab file and the/etc/cron.*/directory. It will al

Recently began to learn Linux C programming, need to use a lot of library functions and C standard library functions, found that the original Man command can also be used to query function prototypes.For example, enter man Lseek to get the prototype of the function Lseek and the owning header file.Some function names are both Linux commands and system calls, such as mkdir, which can be entered by the Man 2

I met several senior UNIX developers many years ago, such as James and casual brother. At that time, I was doing research on User Interface related fields in windows, such as win32k. in sys, the implementation principle of directui/netui and how to implement an external window style switch (similar to a windowblinds mechanism in one application or in the whole system ), for knowledge extension, I have consulted them about the X Window System in

How to get started with Linux: the conversion between local time and UNIX timestamp in Perl Problem: in Perl, I need to convert the readable date and time to the corresponding UNIX timestamp, and vice versa. Can you give me some Perl code examples that convert date and time to UNIX timestamp? Alternatively, convert the

BKJIA technical materials] recently, many colleagues, especially our PHP developers, basically do not use shortcuts in Linux/unix, seriously affecting work efficiency, therefore, this article is specially written. I will comment it out in detail after each usage. All of the following commands are valid in Linux/unix sh

The SAN option in BE is not supported for backing up a SAN on a UNIX or LINUX client-Linux Enterprise Application-Linux server application information. See the following for details. Today, a customer asked me the following question: In backup exec, I backed up the UNIX clie

The flexible combination of Linux/Unix Shell and SQL variable transmission greatly improves DBA efficiency, this article provides a few simple examples of passing variables between Linux/Unix shell SQL statements for your reference. Call SQL in Linux/

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

Linux/unix how to find and delete a file at a point in timeIn the Linux/unix system, our application generates log files every day, the application and database are backed up every day, log files and backup files accumulate a lot of storage space for a long time, and some log and backup files do not need to be retained

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 file, enter:>/path/to/file>/path/to/filerm /pat

Unix/linux version of the numerous, we recommend Unix/linux beginners to choose several typical unix/linux operating system to learn.This article will take you to install the Solaris 11 64-bit and configure the C + + development e

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 h

In a Linux system, there is a very important directory--/usr directory. On the origin of this directory name, the main online has the following several statements: User's initials User shareable read-only abbreviation Abbreviation for Unix/user System Resources Abbreviation for Unix/user Software Resources Most versions of the

~unix UNIX is not available for free, it is not open source, want to use must purchase authorizationIn the early 1960s, MIT developed the first time-sharing operating system, CTSS (Compatible-sharing system), which pioneered the era of interactive, multi-user simultaneous use of computer resources. Supports 30 terminal access hostsIn 1965, Bell Labs joined a program by GE General Eletric and MIT mit to buil

0,2)Stopsignal=quit; Signal used to kill process (default term)stopwaitsecs=10; Max num secs to wait b4 SIGKILL (default 10)Stopasgroup=false; Send stop signal to the UNIX process group (default false)Killasgroup=false; SIGKILL the UNIX process group (Def false)User=chrism; Setuid to this UNIX account to runRedirect_stderr=true; REDIRECT Proc stderr to stdout (d

Beginners of Unix (including Linux) are often confused and don't understand what the directory structure means. For example, there is a subdirectory/bin underneath the root directory that holds the binaries. However, the/USR subdirectory also contains/usr/bin, as well as/usr/local/bin, which is also used to store binaries, and some systems even have/opt/bin. What's the difference between them?

// shadow> shadownew 11. Check whether CAT shadownew has changed Root: 6453 :::: 12, CP shadownew shadow 13, CD/ Unmount/temp Sync Shutdown-I0-G0-y 14. After removing the CD and restarting the system, the root user does not need the password! This is also acceptable! OK boot CDROM-S # Term = sun # Export term # Mount/dev/DSK/c0t0d0s0/ # Vi/A/etc/shadow (delete the root encrypted password) # Reboot Iii. SCO Unix Once the Super User password of the SCO