Solaris Developer Quiz April 11, 2007

Lippman

Which one is a Solaris debugging tool?
a) ls
b) less
c) tar
d) gcore
The correct answer is d.
'gcore' is a debugging utility that creates a core image of each specified running process. By default, the name of the core image file for the process whose process ID is process-id will be core.process-id. Using options, you can specify content, grab control of a process, produce core image files in the global core file repository, substitue a filename, and produce core image files in process-specific locations.
'ls' lists the contents of a directory. The output is sorted alphabetically by default. When no argument is given, the current directory is listed. The default format for output directed to a terminal is multi-column with entries sorted down the columns.
'less' is a page view utility like 'more' that allows you to move backward as well as forward in a file. Also, 'less' does not have to read the entire input file before starting. Commands are based on 'more' and 'vi'.
'tar' is a utility that archives and extracts files to and from a single file called a tarfile. A tarfile is usually a magnetic tape, but it can be any file. tar's actions are controlled  by the key argument.


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