Edit /etc/crontab
vi /etc/crontab
Every end of the month
H 23 28-31 * * /usr/bin/test $( date -d '+1 day' +%d ) -eq 1 && <COMMAND>
Every last Friday of the month
0 0 * * 5 /usr/bin/test $( date +%m ) -ne $( date --date '7 day' +%m ) && <COMMAND>
These will be useful in Jenkins.
/usr/bin/test $( date -d '+1 day' +%d ) -eq 1
or
/usr/bin/test $( date +%m ) -ne $( date --date '7 day' +%m )
Security Group
It is enough to open the port 22 at Security Group on EC2
SSH TCP 22 0.0.0.0/32
JMeter Server Configuration
cd apache-jmeter-3.0/bin
vi ./jmeter.properties
Find and modify the following two lines
Create the following script and run:
vi color.sh
chmod +x color.sh
./color.sh
The bash script:
#!/bin/bash
export txtrst='\x1b[00m' # Reset
echo
for i in {0..255} ; do
printf "\x1b[00;${i}m ${i}${txtrst}"
done
echo
echo
for i in {0..255} ; do
printf "\x1b[38;05;%03dm 38;05;%03d " ${i} ${i}
if [ $(( ${i} % 8 )) -eq 7 ] ; then
echo
fi
done
echo
Once you figure out the escape sequence color number, you can use as follows:
To adjust timezone on your Linux to Pacific Standard Time (PST/PDT), type the following on command line.
sudo mv /etc/localtime /etc/localtime.org; sudo ln -s /usr/share/zoneinfo/America/Los_Angeles /etc/localtime
To adjust timezone on your Linux to Japanese Standard Time (JST), type the following on command line.
sudo mv /etc/localtime /etc/localtime.org; sudo ln -s /usr/share/zoneinfo/Asia/Tokyo /etc/localtime