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This can be done with one command line (albeit a rather long one). It also implies a rather recent version of awk, some older versions won't support the fixed width argument splitting.  Below is the code with (remove backslashes if pasting as a single line)  
 
This can be done with one command line (albeit a rather long one). It also implies a rather recent version of awk, some older versions won't support the fixed width argument splitting.  Below is the code with (remove backslashes if pasting as a single line)  
   −
grep 'ATOM\|HETATM' file1.pdb file2.pdb | \
+
  grep 'ATOM\|HETATM' file1.pdb file2.pdb | \
 
+
  grep -v REMARK | \
grep -v REMARK | \
+
  cut -d: -f 2 | \
 
+
  cut -c 13-54 | \
cut -d: -f 2 | \
+
  sort | \
 
+
  awk 'BEGIN {FIELDWIDTHS = "14 28"; pt=""} {if(pt==$1) print pr,$2; pt=$1; pr=$0;}' | \
cut -c 13-54 | \
+
  awk 'BEGIN {FIELDWIDTHS = "14 4 8 8 8 5 8 8 8"} {printf "%s %8.4f\n",$1,sqrt(($3-$7)^2+($4-$8)^2+($5-$9)^2);}' | \
 
+
  awk 'BEGIN {FIELDWIDTHS = "4 1 3 1 1 5 9"} {printf "%s %s %s %s %s\n", $3,$5,$6,$1,$7;}'
sort | \
  −
 
  −
awk 'BEGIN {FIELDWIDTHS = "14 28"; pt=""} {if(pt==$1) print pr,$2; pt=$1; pr=$0;}' | \
  −
 
  −
awk 'BEGIN {FIELDWIDTHS = "14 4 8 8 8 5 8 8 8"} {printf "%s %8.4f\n",$1,sqrt(($3-$7)^2+($4-$8)^2+($5-$9)^2);}' | \
  −
 
  −
awk 'BEGIN {FIELDWIDTHS = "4 1 3 1 1 5 9"} {printf "%s %s %s %s %s\n", $3,$5,$6,$1,$7;}'
         
Back to [[Useful scripts (aka smart piece of code)]]
 
Back to [[Useful scripts (aka smart piece of code)]]
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