请问qt中，如何让自己写的程序每天定时运行

xmllint --noout --noent --path zh_CN:./zh_CN --xinclude --postvalid ./zh_CN/cheese.xml
xsltproc -o cheese-C.omf --stringparam db2omf.basename cheese --stringparam db2omf.format 'docbook' --stringparam db2omf.dtd "-//OASIS//DTD DocBook XML V4.3//EN" --stringparam db2omf.lang C --stringparam db2omf.omf_dir "/usr/local/share/omf" --stringparam db2omf.help_dir "/usr/local/share/gnome/help" --stringparam db2omf.omf_in "/home/administrator/桌面/cheese-2.32.0/help/cheese.omf.in" `/usr/bin/pkg-config --variable db2omf gnome-doc-utils` C/cheese.xml || { rm -f "cheese-C.omf"; exit 1; }
db2omf: Could not construct the OMF subject element.
Add a subject element to /home/administrator/桌面/cheese-2.32.0/help/cheese.omf.in.
make[1]: *** [cheese-C.omf] 错误 1
make[1]:正在离开目录 `/home/administrator/桌面/cheese-2.32.0/help'
make: *** [check-recursive] 错误 1

怎么回事啊，大侠帮忙！不吝赐教啊！！