我想遍历一个文件列表。这个列表是一个find命令的结果，所以我想出了:
getlist() {
for f in $(find . -iname "foo*")
do
echo "File found: $f"
# do something useful
done
}
这很好，除非文件名称中有空格:
$ ls
foo_bar_baz.txt
foo bar baz.txt
$ getlist
File found: foo_bar_baz.txt
File found: foo
File found: bar
File found: baz.txt
我能做些什么来避免空格分割?
当前回答
好的，这是我在Stack Overflow上的第一篇文章!
Though my problems with this have always been in csh not bash the solution I present will, I'm sure, work in both. The issue is with the shell's interpretation of the "ls" returns. We can remove "ls" from the problem by simply using the shell expansion of the * wildcard - but this gives a "no match" error if there are no files in the current (or specified folder) - to get around this we simply extend the expansion to include dot-files thus: * .* - this will always yield results since the files . and .. will always be present. So in csh we can use this construct ...
foreach file (* .*)
echo $file
end
如果你想过滤掉标准的点文件，那很简单…
foreach file (* .*)
if ("$file" == .) continue
if ("file" == ..) continue
echo $file
end
在这个线程的第一篇文章中的代码将这样写:-
getlist() {
for f in $(* .*)
do
echo "File found: $f"
# do something useful
done
}
希望这能有所帮助!
其他回答
好的，这是我在Stack Overflow上的第一篇文章!
Though my problems with this have always been in csh not bash the solution I present will, I'm sure, work in both. The issue is with the shell's interpretation of the "ls" returns. We can remove "ls" from the problem by simply using the shell expansion of the * wildcard - but this gives a "no match" error if there are no files in the current (or specified folder) - to get around this we simply extend the expansion to include dot-files thus: * .* - this will always yield results since the files . and .. will always be present. So in csh we can use this construct ...
foreach file (* .*)
echo $file
end
如果你想过滤掉标准的点文件，那很简单…
foreach file (* .*)
if ("$file" == .) continue
if ("file" == ..) continue
echo $file
end
在这个线程的第一篇文章中的代码将这样写:-
getlist() {
for f in $(* .*)
do
echo "File found: $f"
# do something useful
done
}
希望这能有所帮助!
find . -name "fo*" -print0 | xargs -0 ls -l
见xargs先生。
我最近不得不处理一个类似的情况，我构建了一个FILES数组来遍历文件名:
eval FILES=($(find . -iname "foo*" -printf '"%p" '))
这里的想法是用双引号包围每个文件名，用空格分隔它们，并使用结果初始化FILES数组。 必须使用eval来正确计算find输出中的双引号，以初始化数组。
要遍历文件，只需执行:
for f in "${FILES[@]}"; do
# Do something with $f
done
另一个解决工作的方法是……
目标是:
递归地选择/过滤目录中的文件名 处理每个名称(路径…中的任意空格)
#!/bin/bash -e
## @Trick in order handle File with space in their path...
OLD_IFS=${IFS}
IFS=$'\n'
files=($(find ${INPUT_DIR} -type f -name "*.md"))
for filename in ${files[*]}
do
# do your stuff
# ....
done
IFS=${OLD_IFS}
在某些情况下，如果您只需要复制或移动一个文件列表，您也可以将该列表管道到awk。 重要的是$0字段周围的\"" "" \"(简而言之，您的文件，一行列表=一个文件)。
find . -iname "foo*" | awk '{print "mv \""$0"\" ./MyDir2" | "sh" }'
