ls
cd root
cat build.sh
dirname $0
cd root
ls
dirname 
dirname %0
./build.sh
ls
ls -al
ls -al /bin
ls -al /user/bin
ls -al /usr/bin
build.sh
cat build.sh
nano build.sh 
vi build.sh 
exit
cd root/
ls
build.sh
./build.sh
./build.sh
./build.sh
exit
lsb release
lsb_release
exit
cd root
ls
build.sh
./build.sh 
exit
cd root
./build.sh 
exit
