Why does the following not work?
exec 3<|cat $0
The idea is to get file-descriptor (3) of a pipe (| cat $0).
Why does the following not work? exec 3<|cat $0 The idea is to get
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Why does the following not work?
exec 3<|cat $0
The idea is to get file-descriptor (3) of a pipe (| cat $0).
You cannot mix exec and pipes that way. It seems what you need is a process substitution:
http://tldp.org/LDP/abs/html/x17601.html#REDIR1
http://tldp.org/LDP/abs/html/process-sub.html