Linux

For example, in the link lib123.a Library generated libabc.so library often encountered this problem, when the link libabc.so the following error:libabc.so:undefined reference to ' XXX 'At Readelf-s lib123.a | grep "XXX" when displayed165:00000000000

After landing, the command line only, no user or the like $ Input $ echo $PS 1$ is also empty. Enter bash to return to the desired state $ bash[[email Protected] ~]$ A temporary solution is the case, the long-term solution is: $ chsh-s/bin/bash

a command1.1 WriteThis command copies the characters entered by the current terminal (source) to the target user's terminal, thereby sending a message to a user in the system. Use the following: #Write [Ctrl+d] or [Ctrl + C]

http://www.cnblogs.com/chengmo/archive/2010/10/10/1847287.html Linux shell Regular expression (bres,eres,pres) difference comparison http://www.360doc.com/content/11/0304/11/5912935_98007617.shtml Regular Expression

The du command is one of the most commonly used commands for system operations and is designed to count file directory occupancy-a displays all file and directory sizes, recursive display--apparent-size shows the size of files and directories rather

Tag:linux    kernel     memory management     /* *author:davidlin *date:2014-11-22pm *email: [email protected] or [email protected] *wo Rld:the City of SZ, in China *ver:000.000.001 *history:editor time do * 1) Linpeng 2014-11-22

Linux and WinXP information sharinginstallation and configuration of Samba serverssteps:(1) query whether Samba services are installedRpm-q SambaRpm-qa |grep SambaService SMB Start(2) Installing SambaA, Mount imagemount-t iso9660 Xxx.iso/mymedia-o

1.ls Directory Enumeration (dir)Generally we write this:Linux Code Collection CodeLsEnumerating all the files in the current directory, if there are many files, it is very complicated. We can add keywords, for example we want to see all the files

1.ls Directory Enumeration (dir)Generally we write this:Linux Code Collection CodeLsEnumerating all the files in the current directory, if there are many files, it is very complicated. We can add keywords, for example we want to see all the files

First, enter the Linux operating system,The LS [properties] [parameters] command indicates which files and directories are viewed under the current directory.Property value:-l file or directory details-A queries all files and directories under the

Calculating the factorial of 10 using a scriptSimply explain:#!/bin/bash describes the Bash shell program that the shell uses. This is a very short sentence.For i in ' SEQ 1 10 ' can also be written for I in 1 2 3 4 5 6 7 8 9 10Single quotation

Linux Command du, linuxdu The du command is one of the common commands for system O & M. Its purpose is to count the usage of file directories. -A: displays the size of all files and directories recursively. -- Apparent-size: displays the file and

Linux LVM and linuxlvm PV Pvcreate/dev/sdan Pvs # simple view ## Pvdisplay/dev/sdan ### View Details ## VG Vgcreate name/dev/sdan Vgdisplay name Vgremove name First pvmove/dev/sdan, then vgreduce name/dev/sdan, and finally

ContOS uses local cdrom as the yum Source 1. Mount CDROM Refer to: CentOS7 use the mount command to mount CDROM 2. Check whether createrepo has been installed. Command: rpm-qa | grep createrepo If the ContOS disk is not installed, switch to

Rrdtool installation (centos6) modifies the word next to the O & M network Cacti Image 1. Download SoftwareWget http://oss.oetiker.ch/rrdtool/pub/rrdtool-1.4.7.tar.gz2. Install the dependency package 1 yum install gcc libxml2-devel

Shell Study Notes (2) Regular Expressions in shellThe difference between a wildcard and a regular expression is the native syntax supported by bash. A regular expression is a way to process strings. A regular expression must be supported by a

How to upgrade CentOS6.5 to linux 3.12.17 Environment: System hardware: vmware vsphere (CPU: 2*4 cores, 2 GB memory) Linux centos 2.6.32-431. el6.x86 _ 64 (Centos-6.5-x86_64-minimal.iso) Upgrade kernel: longterm: 3.12.17 Upgrade procedure: 1.

Tomcat memory overflow in linux Sometimes there are many system programs, which may cause outofmemory,Permgen spaceMemory and other issues First, monitor whether a stream is not closed, common such as inputstream and connection. It is best to

For linux, £°ubuntu14. 04. £yum ********************************************************** Ú ú° ² ×° ² â Ê Ô» · ¾ ³ µäê ± ° Ó óöμ ½ Á Ë ò» ö öî â £./etc/yum /repos. dö~²» '~~ú~ä~~~» ~~ä ~~~~~~~~~~~~~~~」 ½  ¾ ö½ ·? £;%» Then ~~äö~íø  çyum %'£. 1.

Install LAMP in CentOS7 as a Web Service 1. # Yum install php (The dependency package also drops httpd) # Systemctl start httpd. service # Firewall-cmd -- add-service = http (The firewall unblocks http Services) # Firewall-cmd -- permanent --