Linux SED Command Game
    
    
    
    
    
    
        Linux SED Command Cheat Sheet
        
            - Replace text: 
sed 's/old/new/g' filename 
            - Delete lines containing: 
sed '/pattern/d' filename 
            - Print specific lines: 
sed -n '5p' filename 
            - Replace only first occurrence: 
sed 's/old/new/' filename 
            - Replace second occurrence: 
sed 's/old/new/2' filename 
            - Append text at end of line: 
sed 's/$/ END/' filename 
            - Insert text at beginning of line: 
sed 's/^/START /' filename 
            - Delete all blank lines: 
sed '/^$/d' filename 
            - Replace only on lines containing: 
sed '/match/s/old/new/g' filename