我想看到的:
$ printf "\U1F600\n"|hexdump -v -e '1/1 " %03o"'|tr ' ' '\\'
\360\237\230\200\012
我尝试过的:
$ printf "\U1F600\n"|hexdump -v -e '1/1 "\\%03o"'
hexdump: bad conversion character %�
$ printf "\U1F600\n"|hexdump -v -e '1/1 "\%03o"'
hexdump: bad conversion character %%
$ printf "\U1F600\n"|hexdump -v -e '1/1 "\\\%03o"'
hexdump: bad conversion character %\
$ printf "\U1F600\n"|hexdump -v -e '1/1 "\\\\%03o"'
\\\\360\\\\237\\\\230\\\\200\\\\12
答案1
基于hexdump
手册页中的示例:
# hex with preceding 'x' % echo hello | hexdump -v -e '"x" 1/1 "%02X" " "' ; echo x68 x65 x6C x6C x6F x0A
看来你可以使用-e '"\\" 1/1 "%03o" '
前任。
$ echo hello | hexdump -v -e '"\\" 1/1 "%03o" ' ; echo
\150\145\154\154\157\012