7 мая 2013 г. · You may have spaces or tabs in your "empty" line. Use POSIX classes with sed to remove all lines containing only whitespace:

10 авг. 2018 г. · I want to remove all empty lines in the data. I did a search Delete empty lines using SED has given the perfect answer.

26 сент. 2012 г. · It will delete only two consecutive blank lines in a file. You can use this expression only in file then only you can fully understand.

27 нояб. 2020 г. · You seem to be removing all blank lines given your sample input/output. If so that's just grep '.' or sed -n '/./p' or awk 'NF'.

15 дек. 2010 г. · To remove blank lines you can use grep . or sed '/^$/d' It will remove any blank line in the file. I hope you file does not have any blank lines in the middle.

14 нояб. 2016 г. · Below sed command would remove all the empty lines and also the lines having only spaces. sed '/^[[:blank:]]*$/d' file

9 янв. 2017 г. · I tried to use 'sed' command to remove the empty lines. sed -i '/^$/d' file.txt My sample txt file looks likes this. The second line has space characters.

6 янв. 2022 г. · The simple ways to delete empty lines using mandatory POSIX tools are: grep '.' file, grep -v '^$' file, sed -n '/./p' file, sed '/^$/d' file,

19 нояб. 2019 г. · Something along: sed 'N;/^ *\n *$/!P;D'. Small explanation: N - add next line to pattern space; /^ *\n *$/ - we have two lines in pattern ...

12 авг. 2015 г. · This will do the trick: $ awk -v n=-2 'NR==n+1 && !NF{next} /G/ {n=NR}1' file G O TO P999-ERREUR END-IF. Explanation: