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  1. #!/bin/bash
  2. s='956,938,987,964,1004,934,1018,912'
  3. echo $s | sed 's/\([0-9]\{2,\}\)\([0-9]\)/\1.\2/g'
Success #stdin #stdout 0s 19632KB
stdin
Standard input is empty
stdout
95.6,93.8,98.7,96.4,100.4,93.4,101.8,91.2