I have a simple problem:
In my file, the are lines containing the string ˆ@ˆ@ˆ@ˆ@ˆ@ˆ@
. I just want to delete all lines with this string, using for example the sed
or grep
commands.
And I would like to know why there is such string occurred in my file. What is it meaning for in Linux/Unix world?
Best Answer
These
^@
are null characters, which have an ASCII code of 0.You can delete them using:
or:
It's possible that this is a file hole. I have also seen this issue in the past - these null characters appeared in my logs when I was running out of disk space and processes were trying to write to them.