Search notes:

sed example: keep every 3rd line

#
# Compare with delete-every-3rd-line
#
echo "Start with line one, delete every 3rd line"
sed '1~3!d' testfiles/every-3rd-line
Github repository about-sed, path: /keep-every-3rd-line

See also

sed testfile: every 3rd line
sed: delete every 3rd line
sed examples

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1758200352, '216.73.216.150', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/languages/sed/examples/keep-every-3rd-line(48): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78