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cat cmd*log

# or, for a listing ordered by node name (the 11th field)
cat cmd*log | sort -k 11,11

The vertical bar ( | ) above is the pipe operator ( | ), which connects one program's standard output to the next program's standard input.

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(Read more about the sort command at Linux fundamentals: cut, sort, uniq, and more about Piping)

You should see something like output below.

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Notice that there are 4 different host names. This expression:

cat cmd*log | awk '{print $11}' | sort | uniq -c

should produce output something like this (read more about piping commands to make a histogram)

   4 c302-005.ls6.tacc.utexas.edu
   4 c302-006.ls6.tacc.utexas.edu
   4 c305-005.ls6.tacc.utexas.edu
   4 c305-006.ls6.tacc.utexas.edu

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