Learning Linux Shell Scripting - Second Edition

Summary of debugging options for the set command

The following table summarizes the various options for the set command:

Short notation	Result
set -f	Disables globing. In this case, the filename expansions using wildcards or meta-characters will be disabled.
set -v	This will print the shell script lines as they are read by the shell.
set -x	This option will display each line after the variable substitution and command expansion, but before execution by the shell. This option is often called shell tracing.
set -n	This reads all commands and checks the syntax, but does not execute them.