bash - 找到所有.bashrc文件并附加到它们

Question

I need to find all .bashrc files and append "MYSQL_HISTFILE=/dev/null" to it, to remediate an issue. There are alot of .bashrc files, so can I do something like:

find / -type f -name ".bashrc" -exec echo "export MYSQL_HISTFILE=/dev/null" >> {} \;

Answer 1

>> is executed by the original shell process, it can't use substitution from find . And find doesn't run its command through a shell, so it can't do output redirection itself.

You need to execute bash explicitly so you can use redirection in the command.

find / -type f -name '.bashrc' -exec bash -c 'echo export MYSQL_HISTFILE=/dev/null >> "{}"' \;