hexer

A cmd hex editor

Interactive mode

Start editing:

$ ./hexer file.txt

Start editing

00000000   54 68 69 73 20 69 73 20 6d 79 20 70 72 61 63 74    This.is.my.pract
00000010   69 63 65 20 66 69 6c 65                            ice.file

Choose an option: insert
Enter offset:  0b
Enter data:  great 

Choose an option: print
00000000   54 68 69 73 20 69 73 20 6d 79 20 67 72 65 61 74    This.is.my.great
00000010   20 70 72 61 63 74 69 63 65 20 66 69 6c 65          .practice.file

Choose an option: save_as
File Name: new_file.txt

Choose an option: edit_hex
Enter offset:  0b
Enter data:  73 75 70 65 72

Choose an option: print
00000000   54 68 69 73 20 69 73 20 6d 79 20 73 75 70 65 72    This.is.my.super
00000010   20 70 72 61 63 74 69 63 65 20 66 69 6c 65          .practice.file

Choose an option: save

Choose an option: quit

Automated mode (-o)

Pass in all commands at start

$ ./hexer file.txt -o insert 0b "great " save_as new_file.txt

Full command list:

####edit (aka e, replace, r)

Write text over existing bite, starting from provided offset.

####edit_hex (aka eh, replace_hex, rh)

Write bytes over existing bytes starting from provided offset. Bytes should be provided in hex format. Non-hex characters (eg. spaces) will be ignored.

####print (aka p)

Send hex-formatted file to stdout

####less Send hex-formatted file to stdout one line at a time and wait for return to be pressed (even in automated mode)

####save (aka s)

Save edited file to disk

####save_as (aka sa)

Save file to disk with new name

####truncate (aka trunc)

Delete all bytes from provided offset

####append (aka a) Add text to end of file

####append_hex (aka ah)

Add bytes to end of file. Bytes should be provided in hex format

####insert (aka i)

Add text to file at provided offset

####insert_hex (aka ih)

Add bytes to file at provided offset. Bytes should be provided in hex format

####delete (aka d)

Delete specified number of bytes, starting at the offset

####quit (aka q)

Exit hexer

####x Save and exit