Bash builtin for creating interactive asynchronous subshells. More information: https://www.gnu.org/software/bash/manual/bash.html#Coprocesses.…
Bash builtin for creating interactive asynchronous subshells. More information: https://www.gnu.org/software/bash/manual/bash.html#Coprocesses.
coproc { {{command1; command2; ...}}; }
coproc {{name}} { {{command1; command2; ...}}; }
stdin
:echo "{{input}}" >&"${{{name}}[1]}"
stdout
:read {{variable}} <&"${{{name}}[0]}"
stdin
and runs some commands on the input:coproc {{name}} { while read line; do {{command1; command2; ...}}; done }
stdin
, runs a pipeline on the input, and writes the output to stdout
:coproc {{name}} { while read line; do echo "$line" | {{command1 | command2 | ...}} | cat /dev/fd/0; done }
bc
:coproc BC { bc --mathlib; }; echo "1/3" >&"${BC[1]}"; read output <&"${BC[0]}"; echo "$output"