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What dc command?
The dc command is an arbitrary-precision arithmetic calculator. The dc command takes its input from the File parameter or standard input until it reads an end-of-file character. After the dc command receives the input, it evaluates the value and writes the evaluation to standard output.
How to use dc command?
dc command in Linux is used to evaluate arithmetic expressions. It evaluates expressions in the form of a postfix expression. Entering a number pushes it into the stack and entering an operator evaluates an expression and pushes the result back into the stack. It can evaluate +, -, /, *, %, ^.
How do you get out of dc shell?
exits from a macro, and also from the macro which invoked it. If called from the top level, or from a macro which was called directly from the top level, the q command causes dc to exit.
What is the output of df command?
Use the df command to show the amount of free disk space on each mounted disk. The usable disk space that is reported by df reflects only 90 percent of full capacity, as the reporting statistics leave 10 percent above the total available space. This head room normally stays empty for better performance.
What does W command do in Linux?
w command in Linux is used to show who is logged on and what they are doing. This command shows the information about the users currently on the machine and their processes.
What is the command to exit in Linux?
exit command in Linux with Examples. exit command in linux is used to exit the shell where it is currently running. It takes one more parameter as [N] and exits the shell with a return of status N. If n is not provided, then it simply returns the status of last command that is executed.
What does the DC command do in Unix?
On Unix-like operating systems, the dc command is an arbitrary-precision arithmetic calculator.
How to print dc commands on a computer?
Options -V, –version Print out the version information of dc -h, –help Print a usage message briefly summarizin -e script, –expression = script Add the commands in script to the set of -f script-file, –file = script-file Add the commands contained in the file s
What does the P command do in DC?
This translates into “push four and five onto the stack, then, with the multiplication operator, pop two elements from the stack, multiply them and push the result back on the stack.” Then the p command is used to examine (print out to the screen) the top element on the stack.
What are the parameters of the DC command?
dc has three parameters that control its operation: the precision, the input radix, and the output radix. The precision specifies the number of fraction digits to keep in the result of most arithmetic operations. The input radix controls the interpretation of numbers typed in; all numbers typed in use this radix.