Sea*_*ene 6 command-line bash scripts
我正在编写一个脚本来获取文件夹(包括子文件夹)中的所有文件:
#!/bin/bash
function loop() {
files=`ls -1Fd $1`
echo "$files" |
while IFS= read -r file; do
if [[ "$file" == */ ]]; then
loop "$file*"
else
echo "$file"
fi
done
}
loop "$PWD/*"
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我尝试以这种方式测试脚本:
#create folders and files
mkdir test\ folder && mkdir test\ folder/test\ subfolder && touch test\ folder/test\ subfolder/test\ file && cd test\ folder
#execute the script
~/path_to_the_script/test.sh
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但它不起作用,这是错误:
ls: cannot access /home/user/Documents/test: No such file or directory
ls: cannot access folder/*: No such file or directory
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如何修改脚本来实现呢?
首先,不要解析ls. 现在,您的脚本失败的原因是因为您通过"$PWD/*". 因为这是qupted,它传递给你的函数之前,将扩大/path/to/dir/*并因为没有命名的文件*在你的PWD,它失败。
但是,即使它有效,也会使您陷入无限循环。
您正在寻找的是:
#!/bin/bash
function loop() {
## Do nothing if * doesn't match anything.
## This is needed for empty directories, otherwise
## "foo/*" expands to the literal string "foo/*"/
shopt -s nullglob
for file in $1
do
## If $file is a directory
if [ -d "$file" ]
then
echo "looping for $file"
loop "$file/*"
else
echo "$file"
fi
done
}
loop "$PWD/*"
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但是,如果您PWD包含任何空白字符,那将会失败。更安全的方法是:
#!/bin/bash
function loop() {
## Do nothing if * doesn't match anything.
## This is needed for empty directories, otherwise
## "foo/*" expands to the literal string "foo/*"/
shopt -s nullglob
## Make ** recurse into subdirectories
shopt -s globstar
for file in "$@"/**
do
## If $file is a file
if [ -f "$file" ]
then
echo "$file"
fi
done
}
loop "$PWD"
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小智 4
为什么你要走那么远,保持简单就可以了
#!/bin/bash
function loop() {
for i in "$1"/*
do
if [ -d "$i" ]; then
loop "$i"
elif [ -e "$i" ]; then
echo $i
else
echo "$i"" - Folder Empty"
fi
done
}
loop "$PWD"
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希望有帮助;)