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Last active Oct 9, 2019
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## Delete empty line from file
sed -i '/^$/d' <file.ext>
## Delete empty espace at the begining of line
sed -i '/^\s//g' <file.ext>
## Delete email prefix (address@)
sed -i -e 's/[[:alnum:]].\.*[[:alnum:]]*@//g' <file.ext>
## Delete only numbers line
sed -i 's/^[0-9]*$//g' <file.ext>
## Add new line after line match the rick is in the /a
sed -i '/LINETEXT=something/a NEWLINE=somethingelse/' <file.txt>
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