z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

|
|
|
batch
Exit Values
Portability
Related Information
at, bg, crontab
See Appendix F, “Localization” for more information.
0 Successful completion
>0 Returned if the command fails for any reason
If an error occurs, batch does not schedule the job.
POSIX.2 User Portability Extension.
bc — Use the arbitrary-precision arithmetic calculation language
Format
Description
bc [–i] [–l] [file]
bc is a programming language that can perform arithmetic calculations to arbitrary
precision. You can use it interactively, by entering instructions from the terminal. It
can also run programs taken from files.
The file arguments you specify on the command line should be text files containing
bc instructions. bc runs the instructions from those files, in the order that they
appear on the command line, and then runs instructions from the standard input
(stdin). bc ends when it runs a quit instruction or reaches the end of the file on
stdin.
bc is a simple but complete programming language with a syntax reminiscent of the
C programming language. This version of bc is a superset of the standard language
available on most systems. It has a number of additional features intended to make
the language more flexible and useful. Features unique to this implementation are
noted.
Input consists of a series of instructions that assign values to variables or make
calculations. It is also possible to define subprograms called functions, which
perform a sequence of instructions to calculate a single value.
bc displays the result of any line that calculates a value, but does not assign it to a
variable. For example, the instruction:
2+2
displays:
4
By default, bc displays the result of any evaluated instruction followed by a newline.
bc also saves the last value displayed in a special variable . (dot), so that you can
use it in subsequent calculations.
For a summary of the UNIX03 changes to this command, see Appendix N, “UNIX
shell commands changed for UNIX03.”
50 z/OS V1R9.0 UNIX System Services Command Reference