code1
macname@localhost Desktop % macname@localhost Desktop % cat test.sh #!/bin/bash echo "Start the test script" count=1 while [ $count -le 5 ] do echo "Loop #$count" sleep 5 count=$[ $count + 1 ] done echo "Test script is complete" macname@localhost Desktop % macname@localhost Desktop % ./test.sh Start the test script Loop #1 Loop #2 Loop #3 Loop #4 Loop #5 Test script is complete macname@localhost Desktop % macname@localhost Desktop %
code2
macname@localhost Desktop % macname@localhost Desktop % macname@localhost Desktop % cat test.sh #!/bin/bash echo "Start the test script" ./a.sh & ./a.sh & ./a.sh & macname@localhost Desktop % macname@localhost Desktop % macname@localhost Desktop % cat a.sh #!/bin/bash echo "Start the test script" count=1 while [ $count -le 5 ] do echo "Loop #$count" sleep 5 count=$[ $count + 1 ] done echo "Test script is complete" macname@localhost Desktop % macname@localhost Desktop % macname@localhost Desktop % ./test.sh Start the test script macname@localhost Desktop % Start the test script Loop #1 Start the test script Loop #1 Start the test script Loop #1 Loop #2 Loop #2 Loop #2 Loop #3 Loop #3 Loop #3 Loop #4 Loop #4 Loop #4 Loop #5 Loop #5 Loop #5 Test script is complete Test script is complete Test script is complete macname@localhost Desktop % macname@localhost Desktop %