远程SSH：没有这样的文件或目录

Question

When trying to run this cmd:

ssh user@host " cp -f /path1/`cat /path2/file.txt | awk -F : '{printf $4}' `* ../ "

got this:

cat: /path2/file.txt: no such file or directory

Notice that when execute it directly in the server it works

Thanks for any advice

Answer 1

Try this:

ssh user@host 'cp -f /path1/$(awk -F : '\''{printf $4}'\'' /path2/file.txt)* ..'

This might be also interesting: Useless Use of Cat Award .

Or this:

ssh user@host 'cp -f '\'"$path1"\''/$(awk -F : '\''{printf $4}'\'' /path2/file.txt)* ..'

Keep in mind:

• Singe quotes do not evaluate $.
• Double quotes do evaluate $.
• If you want to put a single quote into a single quoted string, you have to split the string in two parts and put an escaped single quote in between. 'a'\\''b' becomes a'b
• If you need to evaluate a variable in a single quoted string, you have to split the string in two parts and put the double quoted variable in between. 'a'"$x"'b' becomes a${x}b