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linux:sed [2018/09/26 18:01] – [delete the redundant empty lines] percylinux:sed [2018/10/22 11:31] (current) – percy
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   find app/src/ -iname "*.java" -exec gsed -i '/^$/{N;/^\n$/D}' {} +   find app/src/ -iname "*.java" -exec gsed -i '/^$/{N;/^\n$/D}' {} +
 +  
 +==== Combine every 3 lines into one line ====
 +  sed 'N;N;s/\n/ /g'
 +  
 +==== Calculate the number ====
 +  cat crashlist_googleplay_20181012.txt|grep -v "^$"|grep -A 2 "^in"|grep -v "-"|gsed "N;N;s/\n/ /g"|awk '{sum += $4 } END { print sum }'
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 +  
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/var/www/dokuwiki/wiki/data/attic/linux/sed.1537956080.txt.gz · Last modified: 2018/09/26 18:01 by percy