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  1. set s "abvc 123 s"
  2. regsub -all {\D+} $s "" res
  3. puts $res
Success #stdin #stdout 0s 28096KB
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stdin
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Standard input is empty
stdout
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123
https://ideone.com/TqtMz9
language:
TCL (tcl 8.6)
created:
6 years ago
visibility:
secret

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