Bash 在循环中检测到错误然后继续处理

Question

我想处理文本文件中包含的 Homebrew 公式列表。如果存在安装错误(例如已经安装、公式名称错误)，我希望它写入错误，但继续处理。 Github project .

到目前为止我所拥有的:

...
# process list of formulas that have been installed
for i in $(cat $FILE) ; do

    echo "Installing $i ..."

    # attempt to install formula; if error write error, process next formula

    brew install $i

done
...

我该怎么做？

Answer 1

有帮助吗？

...
# process list of formulas that have been installed
for i in $(< "$FILE") ; do

    echo "Installing $i ..."

    # attempt to install formula; if error write error, process next formula

    brew install "$i" || continue

done
...

请注意，如果公式包含空格，则 for 循环将分割该行。写起来可能会更好:

...
# process list of formulas that have been installed
while read i ;  do

    # Jump blank lines
    test -z "$i" && continue

    echo "Installing $i ..."

    # attempt to install formula; if error write error, process next formula

    brew install "$i" || continue

done < "$FILE"
...