bash 上传到 sftp 并移动文件。绕来绕去
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bash upload to sftp and moving files. looping around
提问by sander0s
Im somewhat beginner in bash scripting. I have here part of script that uploades files to sftp server. Then it shoud move files to other directory. Else echo info about no files in source_dir. Problem is that its not moving files and is looping back to sftp login after files are already uploaded.
我是 bash 脚本的初学者。我在这里有将文件上传到 sftp 服务器的脚本的一部分。然后它应该将文件移动到其他目录。否则回显有关 source_dir 中没有文件的信息。问题是它没有移动文件，而是在文件上传后循环回到 sftp 登录。
cd /dest_dir/
for file5 in *.test
do
if test -f $file5
then
echo 'some text.'
((
echo "
cd /dest_dir/
lcd /source_dir/
mput *.test
exit
"
) | sftp "user"@"host")
sleep 3
mv /source_dir/$file5 /source_dir/test/
else
echo -e 'some text'
fi
回答by tripleee
There is normally no reason to check that the files you are looping over actually exist. If a file could disappear between the forand the test, it could just as well disappear between the testand the echoinstead, in which case you end up referring to a file which no longer exists anyway.
通常没有理由检查您正在循环的文件是否确实存在。如果一个文件可能在 thefor和 the之间消失test，它也可能在 thetest和 the之间消失echo，在这种情况下，您最终会引用一个无论如何都不再存在的文件。
#!/bin/bash
shopt -s nullglob # bash-only feature
cd /dest_dir/
(#echo "cd /dest_dir/" # no use, you already did above
echo "lcd /source_dir/"
for file in *.test; do
echo put "$file"
done
echo "exit" ) | sftp "user"@"host"
mv *.test /source_dir/test/
This opens a single scpconnection for all the files. It has the distinct disadvantage that if one of the files fails for some reason, the script doesn't catch that.
这scp将为所有文件打开一个连接。它有一个明显的缺点，如果其中一个文件由于某种原因失败，脚本就不会捕捉到它。
Apart from the shopt -s nullglobthis should be portable to Bourne shell in general.
除了shopt -s nullglob这应该可以移植到 Bourne shell。
回答by sander0s
thank you for tips. I made it: with loging:
谢谢你的提示。我做到了：通过登录：
SFTP_HOST="host"
SFTP_LOGIN="USER"
cd /path/
mylog=/path/sftp_session_$(date "+%Y_%m_%d").log
echo "$(date "+%Y-%m-%d %H:%M:%S") - text" >> $mylog
let licz5=`ls|wc -l`
let jest_plik=0
for file5 in *.test
do
if test -f /patch_source1/$file5
then
let jest_plik=1
echo "$(date "+%H:%M:%S") - transfer pliku "$file5" na serwer "$SFTP_HOST >> $mylog
fi
if test -f /source_patch2/$file6
then
echo "$(date "+%H:%M:%S") - transfer pliku "$file6" na serwer "$SFTP_HOST >> $mylog
fi
if test -f /source_patch3/$file7
then
echo "$(date "+%H:%M:%S") - transfer pliku "$file7" na serwer "$SFTP_HOST >> $mylog
fi
if test -f /source_patch4/$file8
then
echo "$(date "+%H:%M:%S") - transfer pliku "$file8" na serwer "$SFTP_HOST >> $mylog
fi
done
if test $jest_plik -eq 1
then
echo 'text.'
(echo 'cd /dest_dir/
lcd /source_p_1/
mput *.test
lcd /source_p_2/
mput *.test
lcd /source_p_3/
mput *.test
lcd /source_p_4/
mput *.test
exit') | sftp $SFTP_LOGIN@$SFTP_HOST
echo "$(date "+%H:%M:%S") - send ok." >> $mylog
else
echo -e 'text'
fi
