cscope --version (return code: 0)
cscope: version 15.8b
cscope --help (return code: 1)
Usage: cscope [-bcCdehklLqRTuUvV] [-f file] [-F file] [-i file] [-I dir] [-s dir] [-p number] [-P path] [-[0-8] pattern] [source files] -b Build the cross-reference only. -C Ignore letter case when searching. -c Use only ASCII characters in the cross-ref file (don't compress). -d Do not update the cross-reference. -e Suppress the <Ctrl>-e command prompt between files. -F symfile Read symbol reference lines from symfile. -f reffile Use reffile as cross-ref file name instead of cscope.out. -h This help screen. -I incdir Look in incdir for any #include files. -i namefile Browse through files listed in namefile, instead of cscope.files -k Kernel Mode - don't use /usr/include for #include files. -L Do a single search with line-oriented output. -l Line-oriented interface. -num pattern Go to input field num (counting from 0) and find pattern. -P path Prepend path to relative file names in pre-built cross-ref file. -p n Display the last n file path components. -q Build an inverted index for quick symbol searching. -R Recurse directories for files. -s dir Look in dir for additional source files. -T Use only the first eight characters to match against C symbols. -U Check file time stamps. -u Unconditionally build the cross-reference file. -v Be more verbose in line mode. -V Print the version number. Please see the manpage for more information.