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Calling Operating System Commands

In all end user tools, UNIX shell commands and executable programs can be called from the command line by prefixing an exclamation mark to them.

Examples:

====> ! ls -l Synchronous display of the current directory;

i.e., work in the end user tool will be inter-

rupted.

====> ! lp out & Asynchronous background printer output of

the file 'out'.

====> ! appl > appl.out & The program appl is (asynchronously) started

in the background writing the result to the file

appl.out.

The commands are started in a shell of their own which terminates when control is returned to the calling ADABAS tool. It is therefore not possible to change, e.g., the current directory of an ADABAS tool by '!cd'.

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