hexedit

View and edit files in hexadecimal or ASCII format

brewmacoslinux

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View and edit files in hexadecimal or ASCII

hexedit

Open a file in hexedit for viewing and editing$ hexedit /path/to/file

Edit a binary file and modify specific byte values$ hexedit /usr/bin/someprogram

View and edit disk partitions or device files$ hexedit /dev/disk0