Web lists-archives.com

Re: Why is stdin always a pipe?




>> $ [[ -p /dev/stdin ]] && echo pipe || echo nopipe
>> nopipe

Interesting, it's always a pipe for me. What about ls ?

$ ls -l /dev/stdin
prw------- 1 user None 0 Jun  4 15:54 /dev/stdin

>> $ [[ -t /dev/stdin ]] && echo term || echo noterm
>> noterm

The '-t' operator is used with file descriptors, so "[[ -t 0 ]]"
http://tldp.org/LDP/abs/html/fto.html

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple