Revisions to Sed / Awk - Find string exactly n characters long

added 80 characters in body

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edited Aug 3, 2016 at 18:16

Try thisThis will process any line that has 12 alphanumeric characters and print the first field:

awk '/[[:alnum:]]{12}/ {print $1}' file

Try this:

awk '/[[:alnum:]]{12}/ {print $1}' file

This will process any line that has 12 alphanumeric characters and print the first field:

awk '/[[:alnum:]]{12}/ {print $1}' file

code block

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edited Aug 3, 2016 at 16:37

Try this: awk '/[[:alnum:]]{12}/ {print $1}' file

awk '/[[:alnum:]]{12}/ {print $1}' file

Try this: awk '/[[:alnum:]]{12}/ {print $1}' file

Try this:

awk '/[[:alnum:]]{12}/ {print $1}' file

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answered Aug 3, 2016 at 16:09

Try this: awk '/[[:alnum:]]{12}/ {print $1}' file

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