Category Archives: linux

tomcat cluster start error on redhat

Posted on January 13, 2012 by MXcode

The error message is below: ===================================================================== SEVERE: Unable to start cluster.

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How to generate SecureCRT key file from .pem file

Posted on November 2, 2010 by MXcode

1、cat keypair.pem>amazonec2key 2、chmod 600 amazonec2key 3、ssh-keygen -p -f amazonec2key 4、ssh-keygen -e -f amazonec2key >> amazonec2key.pub 5、use amazonec2key.pub as secuCRT’s key file. Remember put the amazonec2key in the same location.

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how to install squid-2.5.STABLE13 on linux

Posted on March 9, 2010 by MXcode

To build and install the Squid Cache, type: % ./configure –prefix=/usr/local/squid % make all % make install

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open a port on linux server

Posted on January 13, 2010 by MXcode

========================================= iptables -A RH-Firewall-1-INPUT -p tcp -m state –state NEW -m tcp –dport 3690 -j ACCEPT ========================================= RH-Firewall-1-INPUT is the name of the chain, and change 3690 to the port number you expect. You must restart the service to make … Continue reading →

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use kill with awk

Posted on August 27, 2009 by MXcode

kill `ps -ef | awk ‘{if($11~/WorkOrderProcessor/) print$2}’`

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VI command – D & x

Posted on August 10, 2009 by MXcode

D The D command deletes from the cursor position to the end of the line. (D is a shortcut for d$.) x Often you want to delete only one or two characters. Just as r is a special change command … Continue reading →

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VI command – dw&dd

Posted on August 9, 2009 by MXcode

dw dw deletes a word beginning where the cursor is positioned. Notice that the space following the word is deleted. dd The dd command deletes the entire line that the cursor is on. dd will not delete part of a … Continue reading →

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VI command – (~)

Posted on August 5, 2009 by MXcode

~ Changing the case of a letter is a special form of replacement. The tilde (~) command will change a lowercase letter to uppercase or an uppercase letter to lowercase. Position the cursor on the letter whose case you want … Continue reading →

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VI command – r & s

Posted on August 4, 2009 by MXcode

r One other replacement edit is given by the r command. r replaces a single character with another single character. You do not have to press ESC to return to command mode after making the edit. s The S command, … Continue reading →

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VI command – cw&cc

Posted on August 3, 2009 by MXcode

cw To change a word, combine the c (change) command with w for word. You can replace a word (cw) with a longer or shorter word (or any amount of text). cw can be thought of as “delete the word … Continue reading →

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