我上司向我提出一个问题,即如何以合理的便携和稳健方式将CRLF序列嵌入其外壳脚本(用于通过某种他正在做的 < code>netcat 或 telnet 东西插入其外壳脚本)。
假设POSIX是“足够便携式”的良好基线,
printf "
"
我对他的建议是:
#!/bin/sh
crlf="$(echo xy | tr xy
)"
... 但我可以接受其它评论。 GNU < code> tr 和 bash 的现代版本当然可以。
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