bashvariablescopeloop

2013年5月31日 — Bash Script - Variable Scope in Do-While loop · 1 · Variable being reset ... Update a bash variable in the while loop test from within the loop?

2017年11月6日 — This answer solves the immediate issue of allowing i to survive past the end of the loop, but does not address the other issues still in the ...

problem with shell variable's scope. Hi, I am stuck while developing a shell sub-routine which checks the log file for success or failure. The subroutine ...

2022年9月4日 — I suppose it creates a sub-shell where the COUNTER is not seen so it creates local COUNTER… but why and where can I read more about this?

2019年7月30日 — Not access variable outside loop when a reading a file. I am writing a shell script using the korn shell. It seems that I am only able to use ...

2021年9月20日 — Basically, a Bash variable is limited in scope to only the current process. It won't pass your variables on to any child processes you initiate.

2023年8月20日 — Explains how to iterate over a variable range of numbers in bash including setting up the range by a shell variable.

2021年6月1日 — 1 Answer 1 ... for doesn't introduce its own variable scope, so i is whatever it is on entry to the for loop. This could be global, or local to ...

2017年6月24日 — Shells have no concepts of loop control variables. All variables are global unless their declared function-local, usually with the local ...

2023年3月8日 — If you have the need to update a bash variable inside a loop that reads input from a command, the expected use of a pipe to achieve that fails.