^

Bash builtin to quick substitute a string in the previous command and run the result. Equivalent to !!:s^string1^string2. More information: https://gnu.org/software/bash/manual/bash.html#Event-Designators.

• Run the previous command replacing string1 with string2:

^{{string1}}^{{string2}}

• Remove string1 from the previous command:

^{{string1}}^

• Replace string1 with string2 in the previous command and add string3 to its end:

^{{string1}}^{{string2}}^{{string3}}

• Replace all occurrences of string1:

^{{string1}}^{{string2}}^:&

• Print the substituted command without running it:

^{{string1}}^{{string2}}^:p