Linux command count number of files per folder

Count number of files per folder with this command:

# find * -maxdepth 0 -type d -exec sh -c "echo -n {} ' ' ; ls -lR {} | wc -l" \;

Jboss is truncating log file contents when it is restarted

In order to avoid truncating server.log file contents when restarting jboss, change jboss-log4j.xml FILE Appender class.

<appender name="FILE" class="org.jboss.logging.appender.RollingFileAppender">

No packages marked for update message is returned when using yum with rhn_register

After registering redhat linux system for rhn, yum update command returned "No Packages marked for Update"

# yum update

Loaded plugins: downloadonly, security

Setting up Update Process

No Packages marked for Update

Permission denied message when installing vmtools

When installing vmtools on a linux machine inside the /tmp directory, got this error:

./vmware-install.pl: /usr/bin/perl: bad interpreter: Permission denied

Then looked at tmp for permissions:

lrwxrwxrwx   1 root root     31 Mar  6 11:13 vmware-install.pl

It seems ok but if /etc/fstab has noexec option like:

LABEL=/tmp    /tmp    ext3    nosuid,noexec,nodev    1    2

Changed with this one and remount again:

LABEL=/tmp    /tmp    ext3    defaults    1    2