Hongyu's weblog

- ctrl+Q: get method comment
- alt+com+left: go back

I installed the full Cygwin 1.7 package on Windows 7. When I try to start Apache server following the linux style by running command
$ /usr/sbin/apachectl2 start
I got “Bad system call” error.

After some web search and trial and error, I finally got it work. Below are the steps that I’ve tried. Not sure whether all are necessary though.

Step 1: right click the Cygwin terminal and select “Run as adminstrator”

Step 2: create correct user and group info. Not sure whether this step is necessary.
$ mkpasswd.exe -l
$ mkgroup.exe -l


Step 3: configure server by running command
$ cygserver-config

Step 4: start cygserver
$ net start cygserver

Step 5: start apache
$ /usr/sbin/apachectl2 start

Step 1, install rpm tools
$ yum install rpmdevtools rpmlint

Step 2, set up working directory
$ rpmdev-setuptree

Step 3, create and edit the spec file
$ cd rpmbuild/SPECS
$ rpmdev-newspec


Miscellaneous commands:

show environment variables
rpm --showrc
show specific variable
rpm --eval %_usr

Useful URLs

See this blog

To install/ register a JVM use the following
/usr/sbin/alternatives --install "/usr/bin/java" "java" "/usr/java/default/bin/java" 2
/usr/sbin/alternatives --install "/usr/bin/javac" "javac" "/usr/java/default/bin/javac" 2

And to configure systemwide changes use
/usr/sbin/alternatives --configure java
/usr/sbin/alternatives --configure javac


alias tail_httpd_log=”tail -f /var/log/httpd/error_log | perl -pe ‘s/\[error\]\s+\[client.*?\]\s+//; s/, referer:.*//’”

See this blog