你即將離開本站

並前往https://unix.stackexchange.com/questions/594841/how-do-i-assign-a-value-to-a-bash-variable-if-that-variable-is-null-unassigned-f/594845

How do I assign a value to a BASH variable if that variable is ...

Also, in Bash, foo=$'\0' is the same as foo= , it sets foo to the empty string (the "null string"). Bash can't handle NUL bytes in variables.

確定！ 回上一頁

查詢 「Bash set variable」的人也找了：

  1. bash set -x
    2.
  2. Bash variable substitution
    3.
  3. Bash variable
    4.
  4. Bash set environment variable
    5.
  5. Shell set variable
    6.
  6. Bash variable in variable
    7.
  7. Bash set -e
    8.
  8. bash +
    9.