ired

Minimalistic hexadecimal editor for viewing and editing binary files

brewmacoslinux

Try with needOr install directly

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Minimalistic hexadecimal editor designed to be used in scripts

ired

Open a binary file for hexadecimal editing$ ired /path/to/binary/file

View and edit a file with specific byte offset$ ired -o 0x100 /path/to/file

Edit file in non-interactive mode for scripting$ echo '41 42 43' | ired /path/to/file