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software:unixtools [2019/02/11 20:17]
christian
software:unixtools [2019/06/23 09:19] (current)
christian added segy note
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-{{tag> Unix awk command_line Quick_and_dirty}}+===== Interrogating EBDIC Headers of SEGY files ===== 
 + 
 +When trying to plot SEG-Y files with [[http://​generic-mapping-tools.org|GMT]] one needs to have knowledge about the data. Using Unix's ''​dd''​ command, one can interrogate the EBDIC header: 
 + 
 +<code bash> 
 + dd if=$1 conv=ascii ibs=3200 count=1 | awk '​BEGIN{RS="​C[0-9 ][0-9]"​}{printf "​C%2d%s\n",​NR,​$0}'​ 
 +</​code>​ 
 + 
 +Source: [[https://​hollyghozi.blogspot.com/​2006/​11/​oilgas-how-to-read-ebcdic-segy-header.html|hollyghozi.blogspot.com]] 
 + 
 + 
 + 
 + 
 +{{tag> Unix awk command_line Quick_and_dirty ​SEGY}}
software/unixtools.1549912676.txt.gz · Last modified: 2019/02/11 20:17 by christian