Dear all, To reproduce (also attached): open greene22_2.gdt --quiet outfile mybuf --buffer --quiet labels 2 outfile --close string s = mybuf print s eval strlen(s) ### Ubuntu 16.10 (64) output # ? open greene22_2.gdt --quiet # Read datafile /usr/local/share/gretl/data/greene/greene22_2.gdt # ? outfile mybuf --buffer --quiet # Now writing output to 'mybuf' # Closed output file 'mybuf' # ? string s = mybuf # Generated string s # ? print s # Listing labels for variables: # Z1: Gender (0 = female, 1 = male) # # # ? eval strlen(s) # 66 ### XP(32) & W 10(64) output # ? open greene22_2.gdt --quiet # Read datafile C:\Program Files\gretl\data\greene\greene22_2.gdt # ? outfile mybuf --buffer --quiet # Now writing output to 'mybuf' # Closed output file 'mybuf' # ? string s = mybuf # Generated string s # ? print s # # ? eval strlen(s) # 0 Oleh