Editing Tutorial (section)

=Quick reference=
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! colspan="2" style="background:#ffdead;" | Environmental variables that are used in Madagascar programs
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| '''RSFROOT''' || location of the main Madagascar installation
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| '''RSFSRC''' || location of the source for Madagascar 
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| '''DATAPATH''' || location where to put the binary RSF files 
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| '''RSF_MEMSIZE''' || maximum memory size for some programs to use 
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| '''PYTHONPATH''' || set to point to Python libraries 
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| '''LD_LIBRARY_PATH || set to point to RSF dynamic libraries 
|}


{| class="wikitable" align="center" cellspacing="0" border="1"
! style="background:#ffdead;" | Using programs on the command line
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|<tt>sfprogram < input.rsf arg1=val1 arg2=val2 ... > output.rsf</tt>
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|<tt>sftransp < file.rsf plane=12 > file2.rsf</tt>
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|<tt>sftransp < file.rsf plane=12 <math>|</math> sftransp plane=23 <math>|</math> sftransp plane=34 > file2.rsf</tt>
|}

{| class="wikitable" align="center" cellspacing="0" border="1"
! colspan="2" style="background:#ffdead;" | Some useful programs
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| '''sfdoc -k . <math>|</math> less''' || show program descriptions
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| '''sfbrowser''' || show program browser 
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| '''sfgui''' || show tkMadagascar GUI 
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| '''sfspike'''  || create RSF files 
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| '''sfmath''' || create and manipulate RSF files 
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| '''sftransp''' || change the order of axes in RSF files 
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| '''sfwindow''' || window out portions of RSF files  
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| '''sfricker1''' || create a Ricker wavelet  
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| '''sfft1''' || FFT on the first axis (real to complex)
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| '''sffft3''' || FFT on other axes (complex)
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| '''sfnoise''' || add noise 
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| '''sfdd''' || convert datasets
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| '''sfgrey''' || make raster plots  
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| '''sfcat'' || concatenate datasets together 
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| '''sfput''' || modify header values 
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| '''sfsegyread''' || read SEGY/SU files 
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| '''sfsegywrite''' || write SEGY/SU files
|}

{| class="wikitable" align="center" cellspacing="0" border="1"
! colspan="2" style="background:#ffdead;" | SCons commands
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| '''scons''' || run an SConstruct
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| '''scons view''' || view the results from an SConstruct, run if necessary 
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| '''scons lock''' || lock the results from an SConstruct 

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| '''scons -c'''  || clean the local directory, delete all target files  
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| '''scons -n''' || dry-run of an SConstruct 
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| '''scons --debug=explain''' || explain why SCons is doing what it does 
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| '''pscons''' || parallel execution of an SConstruct    
|}