14 февр. 2012 г. · Enable lastpipe shell option. It allows to get value from the last command in pipe without using subshell. Get exit codes of a pipe when output is assigned to variable ... pipe - bash pipestatus in backticked command? - Stack Overflow Другие результаты с сайта stackoverflow.com |
16 нояб. 2019 г. · Run in a subshell and assigning results into a variable: $ process="$(false | true)" $ echo ${PIPESTATUS[@]} 0 How could I get the exit status of each of the ... Can we use $PIPESTATUS with the tee (or pee) command? eval: $? vs ${PIPESTATUS[@]} (bash) Get exit status of process that's piped to another bash - PIPESTATUS from commands in $(...|...) Другие результаты с сайта unix.stackexchange.com |
17 мая 2012 г. · You can't get output into a variable and PIPESTATUS returned without either a temporary file for the former, or marshalling the latter into a string. How do I get the output and exit value of a subshell when using ... How can I get the result of a command and its return code at the ... Другие результаты с сайта superuser.com |
2 июн. 2015 г. · The result in the PIPESTATUS array is the sub shell return that is the return of the last command of this sub shell (here grep). |
Because bash processes pipelines by creating subshells, control statements like break only take effect in the subshell. |
The members of the $PIPESTATUS array hold the exit status of each respective command executed in a pipe. $PIPESTATUS[0] holds the exit status of the first ... |
10 окт. 2019 г. · Since you're targeting Bash, I would recommend using shopt -s pipefail . It's usually easier to work with than the PIPESTATUS array. |
23 дек. 2022 г. · If you ran the failed command without the pipe it would give error code 1, if you check it after the pipe it will probably give error code 127. |
Pipelines create subshells. Changes in the while loop do not effect the variables in the outer part of the script, as the while loop is run in a subshell. |
19 сент. 2022 г. · Each command in a multi-command pipeline, where pipes are created, is executed in its own subshell, which is a separate process (see Command ... |
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