built-in printf doesn't expand hex sequences

• Relator: (Anônimo)
• Dono: magicant
• Tipo: Feature Requests
• Estado: Aberto [Owner assigned]
• Componente: shell-builtin
• Marcos: (Nenhum)
• Prioridade: 5 - Medium
• Gravidade: 5 - Medium
• Resolução: Nenhum
• Arquivo: Nenhum

Details Responder

yash:

$ printf "\x66\x65\n"
\x66\x65

busybox sh and bash:

$ printf "\x66\x65\n"
fe

this is somewhat of a bummer as now i can't pass anything outside ascii space as commandline parameters to apps (as yash doesn't implement echo -ne either)

Ticket History (3/4 Histories)

2021-10-29 08:18 Updated by: None

• New Ticket "built-in printf doesn't expand hex sequences" created

2021-10-29 21:41 Updated by: magicant

• Details Updated

2021-10-29 21:59 Updated by: magicant

• Tipo Update from Bugs to Feature Requests

Comentário Responder

Why not use the portable octal escapes?

$ printf "\146\145\n"
fe

Yash does support echo -ne too. Maybe you forgot to enable it.

$ ECHO_STYLE=GNU
$ echo -ne '\0146\0145\n'
fe

2021-10-30 01:18 Updated by: None

Comentário Responder

Why not use the portable octal escapes?

because that'd require converting all hex stuff (e.g. taken from hexeditor) first into octal, and rewriting a lot of stuff like https://github.com/sabotage-linux/sabotage/blob/master/KEEP/alarmclock ...

ECHO_STYLE=GNU

ah thanks, good to know. still, no hex :/