Posts by Jean Silva • 26 points

• 1

  votes

  2

  answers

  522

  views

  A: Insert string in first column

  Just use a regular expression in sed to select any number: [0-9]+ Also, use the operator & retrieving the text that married the search expression. Would look like this: cat /tmp/filtrado2.txt |…

  linux regex shell-script awk sed

  answered 7 years, 8 months ago Jean Silva 26