Example we have many html files with content like:
line1<br>line2<br>
[root@tutorialspots ok]# ls backup_type33_okru0.html backup_type4_okru32001.html backup_type33_okru1001.html backup_type4_okru32501.html backup_type33_okru1501.html backup_type4_okru33001.html backup_type33_okru2001.html backup_type4_okru33501.html backup_type33_okru2501.html backup_type4_okru34001.html backup_type33_okru3001.html backup_type4_okru34501.html backup_type33_okru3501.html backup_type4_okru35001.html backup_type33_okru4001.html backup_type4_okru3501.html backup_type33_okru4501.html backup_type4_okru35501.html backup_type33_okru5001.html backup_type4_okru36001.html backup_type33_okru501.html backup_type4_okru36501.html backup_type33_okru5501.html backup_type4_okru37001.html backup_type33_okru6001.html backup_type4_okru37501.html backup_type33_okru6501.html backup_type4_okru38001.html backup_type33_okru7001.html backup_type4_okru38501.html backup_type33_okru7501.html backup_type4_okru39001.html backup_type33_okru8001.html backup_type4_okru39501.html backup_type33_okru8501.html backup_type4_okru40001.html backup_type4_okru0.html backup_type4_okru4001.html backup_type4_okru10001.html backup_type4_okru40501.html backup_type4_okru1001.html backup_type4_okru41001.html backup_type4_okru10501.html backup_type4_okru41501.html backup_type4_okru11001.html backup_type4_okru42001.html backup_type4_okru11501.html backup_type4_okru42501.html backup_type4_okru12001.html backup_type4_okru43001.html backup_type4_okru12501.html backup_type4_okru43501.html backup_type4_okru13001.html backup_type4_okru44001.html backup_type4_okru13501.html backup_type4_okru44501.html backup_type4_okru14001.html backup_type4_okru45001.html backup_type4_okru14501.html backup_type4_okru4501.html backup_type4_okru15001.html backup_type4_okru45501.html backup_type4_okru1501.html backup_type4_okru46001.html backup_type4_okru15501.html backup_type4_okru46501.html backup_type4_okru16001.html backup_type4_okru47001.html backup_type4_okru16501.html backup_type4_okru47501.html backup_type4_okru17001.html backup_type4_okru48001.html backup_type4_okru17501.html backup_type4_okru48501.html backup_type4_okru18001.html backup_type4_okru49001.html backup_type4_okru18501.html backup_type4_okru49501.html backup_type4_okru19001.html backup_type4_okru50001.html backup_type4_okru19501.html backup_type4_okru5001.html backup_type4_okru20001.html backup_type4_okru501.html backup_type4_okru2001.html backup_type4_okru50501.html backup_type4_okru20501.html backup_type4_okru51001.html backup_type4_okru21001.html backup_type4_okru51501.html backup_type4_okru21501.html backup_type4_okru52001.html backup_type4_okru22001.html backup_type4_okru52501.html backup_type4_okru22501.html backup_type4_okru53001.html backup_type4_okru23001.html backup_type4_okru53501.html backup_type4_okru23501.html backup_type4_okru54001.html backup_type4_okru24001.html backup_type4_okru54501.html backup_type4_okru24501.html backup_type4_okru55001.html backup_type4_okru25001.html backup_type4_okru5501.html backup_type4_okru2501.html backup_type4_okru55501.html backup_type4_okru25501.html backup_type4_okru56001.html backup_type4_okru26001.html backup_type4_okru56501.html backup_type4_okru26501.html backup_type4_okru57001.html backup_type4_okru27001.html backup_type4_okru57501.html backup_type4_okru27501.html backup_type4_okru6001.html backup_type4_okru28001.html backup_type4_okru6501.html backup_type4_okru28501.html backup_type4_okru7001.html backup_type4_okru29001.html backup_type4_okru7501.html backup_type4_okru29501.html backup_type4_okru8001.html backup_type4_okru30001.html backup_type4_okru8501.html backup_type4_okru3001.html backup_type4_okru9001.html backup_type4_okru30501.html backup_type4_okru9501.html backup_type4_okru31001.html backup_type4_okru31501.html
How to replace <br> to new line of all html files with a command line in Linux
sed -i 's/<br>/\n/g' *.html
