[Mne_analysis] extracting recording date from .fif file header

[Alexandre Gramfort]

or with mne commands:

$ mne_show_fiff --in sample_audvis_raw.fif --verbose | head -15
 100 = file ID           1.1 0x1083ff3f3a0000 Tue Dec  3 20:01:12 2002
 101 = dir pointer       -1
 106 = free list         -1
 104 = { 100 = measurement
 103 = block ID           1.1 0x306e058d6e0000 Tue Dec  3 20:01:10 2002
 104 = { 101 = meas. info
 212 = scientist         MEG
 206 = comment           acquisition (megacq) VectorView system at NMR-MGH
 104 = { 115 = events
 600 = event ch #'s       9 ints
 601 = event list         1956 ints
 105 = } 115 = events
 104 = { 109 = HPI result
 213 = dig. point         hpi        1 ( -57.9,  68.8,  23.3)
 213 = dig. point         hpi        2 (  66.3, -19.4,  45.3)

HTH
Alex