Misc Notes

Securely delete files in linux:

# srm --help

# shred --help

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Bash history tweaks:

1) Increase history size in Redhat / Fedora / CentOS:

# vim /etc/profile
...
HISTSIZE=100000
...

2) Append history from multiple terminals:

# vim /etc/bashrc
    ...
    fi
    # Turn on append history
    shopt -s histappend
    history -a
    # Turn on checkwinsize
    ...

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Copy your public key to a remote host:

$ ssh-copy-id -i ./.ssh/id_rsa.pub remote.domain.com