As an example:
The following is my prompt whilst in a Git Repo:
$ echo $PS1 | hexdump -C
00000000 5c 30 30 31 24 28 63 6f 64 65 3d 24 7b 3f 23 23 |\001$(code=${?##|
00000010 30 7d 3b 65 63 68 6f 20 24 7b 63 6f 64 65 3a 2b |0};echo ${code:+|
00000020 24 28 74 70 75 74 20 73 65 74 61 66 20 39 29 5c |$(tput setaf 9)\|
00000030 30 30 32 28 24 7b 63 6f 64 65 7d 29 5c 20 7d 29 |002(${code})\ })|
00000040 5c 30 30 31 24 28 74 70 75 74 20 73 67 72 30 29 |\001$(tput sgr0)|
00000050 5c 30 30 32 5c 30 30 31 24 28 74 70 75 74 20 73 |\002\001$(tput s|
00000060 65 74 61 66 20 36 29 5c 30 30 32 24 7b 50 53 31 |etaf 6)\002${PS1|
00000070 5f 53 48 45 4c 4c 53 5f 49 4e 3a 30 3a 24 53 48 |_SHELLS_IN:0:$SH|
00000080 4c 56 4c 7d 5c 30 30 31 24 28 74 70 75 74 20 73 |LVL}\001$(tput s|
00000090 65 74 61 66 20 31 34 29 5c 30 30 32 24 53 48 4c |etaf 14)\002$SHL|
000000a0 56 4c 5c 30 30 31 24 28 74 70 75 74 20 73 65 74 |VL\001$(tput set|
000000b0 61 66 20 36 29 5c 30 30 32 24 7b 50 53 31 5f 53 |af 6)\002${PS1_S|
000000c0 48 45 4c 4c 53 5f 4f 55 54 3a 20 2d 24 53 48 4c |HELLS_OUT: -$SHL|
000000d0 56 4c 7d 20 5c 30 30 31 24 28 74 70 75 74 20 73 |VL} \001$(tput s|
000000e0 67 72 30 29 5c 30 30 32 24 28 65 63 68 6f 20 2d |gr0)\002$(echo -|
000000f0 65 20 24 7b 41 57 53 43 52 45 44 53 7d 29 5c 30 |e ${AWSCREDS})\0|
00000100 30 31 24 28 74 70 75 74 20 73 65 74 61 66 20 35 |01$(tput setaf 5|
00000110 29 5c 30 30 32 5c 44 7b 25 59 2d 25 6d 2d 25 64 |)\002\D{%Y-%m-%d|
00000120 20 25 48 3a 25 4d 3a 25 53 7d 20 5c 30 30 31 24 | %H:%M:%S} \001$|
00000130 28 74 70 75 74 20 73 67 72 30 29 5c 30 30 32 5c |(tput sgr0)\002\|
00000140 30 30 31 24 28 74 70 75 74 20 73 65 74 61 66 20 |001$(tput setaf |
00000150 36 29 5c 30 30 32 5c 75 5c 30 30 31 24 28 74 70 |6)\002\u\001$(tp|
00000160 75 74 20 73 67 72 30 29 5c 30 30 32 5c 30 30 31 |ut sgr0)\002\001|
00000170 24 28 74 70 75 74 20 73 65 74 61 66 20 38 29 5c |$(tput setaf 8)\|
00000180 30 30 32 40 5c 30 30 31 24 28 74 70 75 74 20 73 |002@\001$(tput s|
00000190 67 72 30 29 5c 30 30 32 5c 30 30 31 24 28 74 70 |gr0)\002\001$(tp|
000001a0 75 74 20 73 65 74 61 66 20 32 29 5c 30 30 32 5c |ut setaf 2)\002\|
000001b0 68 5c 30 30 31 24 28 74 70 75 74 20 73 67 72 30 |h\001$(tput sgr0|
000001c0 29 5c 30 30 32 5c 30 30 31 24 28 74 70 75 74 20 |)\002\001$(tput |
000001d0 73 65 74 61 66 20 38 29 5c 30 30 32 3a 5c 30 30 |setaf 8)\002:\00|
000001e0 31 24 28 74 70 75 74 20 73 67 72 30 29 5c 30 30 |1$(tput sgr0)\00|
000001f0 32 5c 30 30 31 24 28 74 70 75 74 20 73 65 74 61 |2\001$(tput seta|
00000200 66 20 33 29 5c 30 30 32 5c 77 5c 30 30 31 24 28 |f 3)\002\w\001$(|
00000210 74 70 75 74 20 73 67 72 30 29 5c 30 30 32 5c 30 |tput sgr0)\002\0|
00000220 30 31 24 28 5b 5b 20 24 63 6f 75 6e 74 20 2d 67 |01$([[ $count -g|
00000230 74 20 31 20 5d 5d 20 26 26 20 65 63 68 6f 20 22 |t 1 ]] && echo "|
00000240 5c 30 30 32 20 5b 24 50 53 31 5f 50 41 54 48 5f |\002 [$PS1_PATH_|
00000250 43 4f 55 4e 54 5d 5c 30 30 31 29 22 29 5c 30 30 |COUNT]\001)")\00|
00000260 32 20 28 01 1b 5b 33 32 6d 02 24 7b 5f 5f 67 69 |2 (..[32m.${__gi|
^^ ^^
00000270 74 5f 70 73 31 5f 62 72 61 6e 63 68 5f 6e 61 6d |t_ps1_branch_nam|
00000280 65 7d 01 1b 5b 30 6d 02 20 01 1b 5b 31 3b 33 34 |e}..[0m. ..[1;34|
^^ ^^ ^^
00000290 6d 02 24 01 1b 5b 30 6d 02 3e 29 20 5c 5c 24 0a |m.$..[0m.>) \\$.|
^^ ^^
000002a0
With the fix
$ echo $PS1 | hexdump -C
00000000 5c 30 30 31 24 28 63 6f 64 65 3d 24 7b 3f 23 23 |\001$(code=${?##|
00000010 30 7d 3b 65 63 68 6f 20 24 7b 63 6f 64 65 3a 2b |0};echo ${code:+|
00000020 24 28 74 70 75 74 20 73 65 74 61 66 20 39 29 5c |$(tput setaf 9)\|
00000030 30 30 32 28 24 7b 63 6f 64 65 7d 29 5c 20 7d 29 |002(${code})\ })|
00000040 5c 30 30 31 24 28 74 70 75 74 20 73 67 72 30 29 |\001$(tput sgr0)|
00000050 5c 30 30 32 5c 30 30 31 24 28 74 70 75 74 20 73 |\002\001$(tput s|
00000060 65 74 61 66 20 36 29 5c 30 30 32 24 7b 50 53 31 |etaf 6)\002${PS1|
00000070 5f 53 48 45 4c 4c 53 5f 49 4e 3a 30 3a 24 53 48 |_SHELLS_IN:0:$SH|
00000080 4c 56 4c 7d 5c 30 30 31 24 28 74 70 75 74 20 73 |LVL}\001$(tput s|
00000090 65 74 61 66 20 31 34 29 5c 30 30 32 24 53 48 4c |etaf 14)\002$SHL|
000000a0 56 4c 5c 30 30 31 24 28 74 70 75 74 20 73 65 74 |VL\001$(tput set|
000000b0 61 66 20 36 29 5c 30 30 32 24 7b 50 53 31 5f 53 |af 6)\002${PS1_S|
000000c0 48 45 4c 4c 53 5f 4f 55 54 3a 20 2d 24 53 48 4c |HELLS_OUT: -$SHL|
000000d0 56 4c 7d 20 5c 30 30 31 24 28 74 70 75 74 20 73 |VL} \001$(tput s|
000000e0 67 72 30 29 5c 30 30 32 24 28 65 63 68 6f 20 2d |gr0)\002$(echo -|
000000f0 65 20 24 7b 41 57 53 43 52 45 44 53 7d 29 5c 30 |e ${AWSCREDS})\0|
00000100 30 31 24 28 74 70 75 74 20 73 65 74 61 66 20 35 |01$(tput setaf 5|
00000110 29 5c 30 30 32 5c 44 7b 25 59 2d 25 6d 2d 25 64 |)\002\D{%Y-%m-%d|
00000120 20 25 48 3a 25 4d 3a 25 53 7d 20 5c 30 30 31 24 | %H:%M:%S} \001$|
00000130 28 74 70 75 74 20 73 67 72 30 29 5c 30 30 32 5c |(tput sgr0)\002\|
00000140 30 30 31 24 28 74 70 75 74 20 73 65 74 61 66 20 |001$(tput setaf |
00000150 36 29 5c 30 30 32 5c 75 5c 30 30 31 24 28 74 70 |6)\002\u\001$(tp|
00000160 75 74 20 73 67 72 30 29 5c 30 30 32 5c 30 30 31 |ut sgr0)\002\001|
00000170 24 28 74 70 75 74 20 73 65 74 61 66 20 38 29 5c |$(tput setaf 8)\|
00000180 30 30 32 40 5c 30 30 31 24 28 74 70 75 74 20 73 |002@\001$(tput s|
00000190 67 72 30 29 5c 30 30 32 5c 30 30 31 24 28 74 70 |gr0)\002\001$(tp|
000001a0 75 74 20 73 65 74 61 66 20 32 29 5c 30 30 32 5c |ut setaf 2)\002\|
000001b0 68 5c 30 30 31 24 28 74 70 75 74 20 73 67 72 30 |h\001$(tput sgr0|
000001c0 29 5c 30 30 32 5c 30 30 31 24 28 74 70 75 74 20 |)\002\001$(tput |
000001d0 73 65 74 61 66 20 38 29 5c 30 30 32 3a 5c 30 30 |setaf 8)\002:\00|
000001e0 31 24 28 74 70 75 74 20 73 67 72 30 29 5c 30 30 |1$(tput sgr0)\00|
000001f0 32 5c 30 30 31 24 28 74 70 75 74 20 73 65 74 61 |2\001$(tput seta|
00000200 66 20 33 29 5c 30 30 32 5c 77 5c 30 30 31 24 28 |f 3)\002\w\001$(|
00000210 74 70 75 74 20 73 67 72 30 29 5c 30 30 32 5c 30 |tput sgr0)\002\0|
00000220 30 31 24 28 5b 5b 20 24 63 6f 75 6e 74 20 2d 67 |01$([[ $count -g|
00000230 74 20 31 20 5d 5d 20 26 26 20 65 63 68 6f 20 22 |t 1 ]] && echo "|
00000240 5c 30 30 32 20 5b 24 50 53 31 5f 50 41 54 48 5f |\002 [$PS1_PATH_|
00000250 43 4f 55 4e 54 5d 5c 30 30 31 29 22 29 5c 30 30 |COUNT]\001)")\00|
00000260 32 20 28 5c 30 30 31 1b 5b 33 32 6d 5c 30 30 32 |2 (\001.[32m\002|
^^^^ ^^^^
00000270 24 7b 5f 5f 67 69 74 5f 70 73 31 5f 62 72 61 6e |${__git_ps1_bran|
00000280 63 68 5f 6e 61 6d 65 7d 5c 30 30 31 1b 5b 30 6d |ch_name}\001.[0m|
^^^^
00000290 5c 30 30 32 20 5c 30 30 31 1b 5b 31 3b 33 34 6d |\002 \001.[1;34m|
^^^^ ^^^^
000002a0 5c 30 30 32 24 5c 30 30 31 1b 5b 30 6d 5c 30 30 |\002$\001.[0m\00|
^^^^ ^^^^
000002b0 32 3e 29 20 5c 5c 24 0a |2>) \\$.|
000002b8
