do not want to save root users’ shell history. How do I force Linux or Unix server to forget bash shell history? How to disable bash shell history on Linux for the root user?
‘m working in Ubuntu bash terminal application and remotely on a RHEL server in cloud platform. I typed the wrong and dangerous command. I no longer wish to remember dangerous command in the history file. How can I remove or delete a single command from bash history file?
often type the wrong command as follows under Linux bash shell:
rsync -av dir1 email@example.com:/path/to/dir1
cp -av file1*.txt file2*.txt /path/to/dest
I need to correct those command as follows:
rsync -av dir5 firstname.lastname@example.org:/path/to/dir1
cp -av delta1*.txt delta2*.txt /path/to/dest
How do I replace dir1 with dir5 or file with delta and repeat the last command under bash shell?