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A comment on Show HN: Using Rust to write shell-script like tasks. Parent comment

Re:Show HN: Using Rust to write shell-script like tasks by viraptor on Sunday August 23, 2020 @07:55AM (#24251262)
Not quite. "<(cmd1)" creates a pipe, connects cmd1 output to it and replaces the expression the pipe name. With one argument you can often use "cmd1 | cmd2 /dev/stdin", but with two you need something better.

Think "diff <(something) <(other)" without using temporary files.

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Re:Show HN: Using Rust to write shell-script like tasks by rustshellscript on Sunday August 23, 2020 @08:40AM (#24251481)
Yes, I also use this for automatically capturing command error messages with timestamps into logs: https://github.com/rust-shell-script/bash_cmd_lib/blob/0b0a6...

However this can be fragile in bash script since any sub shell command can fail. I am still wandering how to support it in this rust_cmd_lib library.

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