January 2001
Intermediate to advanced
480 pages
7h 22m
English
Content preview from Korn Shell: Unix and Linux Programming Manual, Third Edition, The
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Debugging Korn Shell Scripts
The Korn shell provides a number of options that are useful in debugging scripts: noexec (–n), verbose (–v), and xtrace (–x). The noexec (–n) option causes commands to be read without being executed and is used to check for syntax errors. The verbose (–v) option causes the input to displayed as it is read. The xtrace (–x) option causes commands in Korn shell scripts to be displayed as they are executed. This is the most useful, general debugging option. For example, tscript could be run in trace mode if invoked "ksh –x tscript".
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