This is purely a shell operation without any external command. This way one can do for subtract(/), multiply(*), divide(/) and remainder(%) operation. x=20 y=30 ((z=x+y)) echo "z is $z" The other way to do is using the((expression))where the expression is an arithmetic one...
10. Using right conditions at right places in AND or OR: In shell scripting also, we can have logical AND and OR conditions. In an AND condition involving 2 conditions, if the first condition is not true, the second condition is not even evaluated since the result is anyway going to be...
Wintrac instructors are among the best of the best. Typical Wintrac instructors average more than 15 years of technical and hands-on experience in the software disciplines they teach. They combine hands-on consulting work with teaching to ensure that their knowledge is not purely academic. Many ...
Storage will not be optimally configured if this step is skipped, but this may be appropriate for a purely demonstration install. Use the -demo option to install_sdp.sh to skip preflight checks verifying optimal storage configuration. See Section A.1.1, “Storage Volumes Layout” for guidance...
(The default output mode is otherwise aligned.) -c command --command command Specifies that psql is to execute one command string, command, and then exit. This is useful in shell scripts. command must be either a command string that is completely parsable by the server (i.e., it ...