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@cxhercules

cxhercules/pem-split

Forked from jinnko/pem-split
Created August 23, 2018 15:34
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Take a PEM format file as input and split out certs and keys into separate files.
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pem-split
#!/usr/bin/awk -f
#
# Take a PEM format file as input and split out certs and keys into separate files
#
BEGIN { n=0; cert=0; key=0; if ( ARGC < 2 ) { print "Usage: pem-split FILENAME"; exit 1 } }
/-----BEGIN PRIVATE KEY-----/ { key=1; cert=0 }
/-----BEGIN CERTIFICATE-----/ { cert=1; key=0 }
split_after == 1 { n++; split_after=0 }
/-----END CERTIFICATE-----/ { split_after=1 }
/-----END PRIVATE KEY-----/ { split_after=1 }
key == 1 { print > FILENAME "-" n ".key" }
cert == 1 { print > FILENAME "-" n ".crt" }
@cxhercules
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Taken from https://serverfault.com/questions/391396/how-to-split-a-pem-file:

awk '
  split_after == 1 {n++;split_after=0}
  /-----END CERTIFICATE-----/ {split_after=1}
  {print > "cert" n ".pem"}' < $file

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