NeronLeVelu questions

NeronLeVelu answers

• delete the lines that don't have 4 columns
• Use sed in bash to replace string with heredoc
• What is the meaning of $0 = $0 in Awk?
• R data.table fread command : how to read large files with irregular separators?
• Convert massive MySQL dump file to CSV
• Search replace string in a file based on column in other file
• Printing everything except the first field with awk
• How to add html attributes and values for all lines quickly with vim and plugins?
• sed (in bash) works with [ \t] but not with \s?
• replace xml value with sed [duplicate]