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I'm new to Unix command. I was trying to execute the following commands in Git Bash and it directs to error message: paste: /dev/fd/63: No such file or directory

# Set Up Image Lists
paste <(awk "{print \"$PWD\"}" <5k.part) 5k.part | tr -d '\t' > 5k.txt
paste <(awk "{print \"$PWD\"}" <trainvalno5k.part) trainvalno5k.part | tr -d '\t' > trainvalno5k.txt

Could anyone help me understand what it means and what I should do?

muru
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scionx
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1 Answers1

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I replaced the files for cat by _process substitutions -:

]# cat ~/0/test <(tac <~/0/test) <(grep 'world' <~/0/test) <(tac <~/0/test)
hello
world
world
hello
world
world
hello

So in principle this works,

But I know that "fd/63" error; but to provoke it? By levaving out a space it "works" somehow. 

]# cat ~/0/test <(tac <~/0/test) <(grep 'world' <~/0/test)<(tac <~/0/test)
hello
world
world
hello
cat: /dev/fd/62/dev/fd/61: Not a directory

/dev/fd/ is file descriptors; the standard way to implement PS.