On a Windows OS, it is convenient to merge many printing jobs into one by FinePrint.
On a Unix/Linux OS, it may take a few steps to achieve the goal.
Print each printing job as a PostScript file, say, 01.ps, 02.ps, and 03.ps.
Merge them into one PostScript file 99.ps with the following command
gs -q -dNOPAUSE -dBATCH -sDEVICE=pswrite -sOutputFile=099.ps 01.ps 02.ps 03.ps
Print 99.ps
Related Programs:
psmerge - Another PostScript merging tool which is used for VERY specific case
psbook - Rearrange pages in PostScript files into signatures
psselect - Select pages from a PostScript file
pstops - Shuffle pages in a PostScript file
psnup - Multiple pages per sheet
psresize - Rescale and centre the pages of a PostScript file