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  1. #!/bin/bash
  2.  
  3. s='generic,daily,weekly,monthly
  4. generic,daily,nightly,weekly,monthly'
  5. markers=$(echo "$s" | sed -e "s/,/ and /g" -e "/nightly/!s/$/ and not nightly/")
  6. echo "$markers"
Success #stdin #stdout 0.01s 5552KB
stdin
Standard input is empty
stdout
generic and daily and weekly and monthly and not nightly
generic and daily and nightly and weekly and monthly