重定向命令的輸出與定界符

Question

我有一個這樣的命令：

sftp user@host <<EOF 
put file.txt 
exit 
EOF 

現在，我想管的輸出zenity --progress，但我找不到把它的地方。

# SFTP doesn't work anymore 
sftp user@host | zenity --progress <<EOF 
put file.txt 
exit 
EOF 

# Invalid syntax, no end of heredoc 
sftp user@host <<EOF 
put file.txt 
exit 
EOF | zenity --progress 

# Not picked as part of the command 
sftp user@host <<EOF 
put file.txt 
exit 
EOF 
| zenity --progress 

# Does not help 
sftp user@host | zenity --progress <<EOF 
put file.txt 
exit 
EOF\ 
| zenity --progress 

Answer 1

這應該做的伎倆：

sftp user@host <<EOF | zenity --progress 
... 
EOF