suedit

seismic software,very useful

SUEDIT - examine segy diskfiles and edit headers
suedit diskfile  (open for possible header modification if writable)
suedit <diskfile  (open read only)
The following commands are recognized:
number	read in that trace and print nonzero header words
<CR>		go to trace one step away (step is initially -1)
+		read in next trace (step is set to +1)
-		read in previous trace (step is set to -1)
dN		advance N traces (step is set to N)
%		print some percentiles of the trace data
r		print some ranks (rank[j] = jth smallest datum)
p [n1 [n2]]  	tab plot sample n1 to n2 on current trace
g [tr1 tr2]  	wiggle plot (graph) the trace [traces tr1 to tr2]
f		wiggle plot the Fourier transform of the trace
! key=val  	change a value in a field (e.g. ! tracr=101)
?		print help file
q		quit
NOTE: sample numbers are 1-based (first sample is 1).