putting space between integer and '/' using regex in java

Question

I have a String S= "grep -iRl 2020062312213461801003087/var/seamless/spool/tdr/Reconciliation" and i want to add space between last number and "/"

like i want my output to be grep -iRl 2020062312213461801003087 /var/seamless/spool/tdr/Reconciliation

Answer 1

Try this.

String S= "grep -iRl 2020062312213461801003087/var/seamless/spool/tdr/Reconciliation";
String replaced = S.replaceAll("(\\d)(/)", "$1 $2");
System.out.println(replaced);

result:

grep -iRl 2020062312213461801003087 /var/seamless/spool/tdr/Reconciliation