hiroyuki-sato opened a new pull request, #50798:
URL: https://github.com/apache/arrow/pull/50798
### Rationale for this change
This is the sub issue #44748.
* SC2046: Quote this to prevent word splitting.
* SC2086: Double quote to prevent globbing and word splitting.
* SC2223: This default assignment may cause DoS due to globbing. Quote it.
```
shellcheck ci/scripts/r_valgrind.sh
In ci/scripts/r_valgrind.sh line 21:
: ${R_BIN:=RDvalgrind}
^------------------^ SC2223 (info): This default assignment may cause DoS
due to globbing. Quote it.
In ci/scripts/r_valgrind.sh line 27:
pushd ${source_dir}
^-----------^ SC2086 (info): Double quote to prevent globbing and word
splitting.
Did you mean:
pushd "${source_dir}"
In ci/scripts/r_valgrind.sh line 31:
${R_BIN} CMD INSTALL ${INSTALL_ARGS} arrow*.tar.gz
^-------------^ SC2086 (info): Double quote to prevent
globbing and word splitting.
Did you mean:
${R_BIN} CMD INSTALL "${INSTALL_ARGS}" arrow*.tar.gz
In ci/scripts/r_valgrind.sh line 42:
if [ $(grep -c "ERROR SUMMARY: 0 errors" testthat.out) != 1 ]; then
^-- SC2046 (warning): Quote this to prevent word splitting.
For more information:
https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word
splitt...
https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing
...
https://www.shellcheck.net/wiki/SC2223 -- This default assignment may
cause...
```
### What changes are included in this PR?
* SC2046: Quote variable to prevent word splitting.
* SC2086: Quote variable
* SC2223: Quote default variable assignments.
### Are these changes tested?
Yes.
### Are there any user-facing changes?
No.
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