shell中如何实现交互？

jun277

回复 5# 关阴月飞
不是针对cp这个命令，只想解决这类途中要交互命令的方式

   

yestreenstars

回复 10# jun277

哦~
   

jason680

回复 9# jun277

standard answer: expect

$ man expect
EXPECT(1)                                                            EXPECT(1)

NAME
       expect - programmed dialogue with interactive programs, Version 5

SYNOPSIS
       expect [ -dDinN ] [ -c cmds ] [ [ -[f|b] ] cmdfile ] [ args ]

INTRODUCTION
       Expect  is a program that "talks" to other interactive programs accord‐
       ing to a script. Following  the  script,  Expect  knows  what  can  be
       expected  from  a  program and what the correct response should be.  An
       interpreted language provides branching and high-level  control  struc‐
       tures  to  direct the dialogue.  In addition, the user can take control
       and interact directly when desired, afterward returning control to  the
       script.

       ...

   

不能超过15字

echo "cp XXX YYY?(Y/N)"
read ans

[ "$ans" == "Y" ] &&cp XXX YYY

libinbin7288

用EOF

cp /home/123.txt /data/<< EOF
y
EOF

jimmy14k

如果是写自动执行脚本，更多的时候，应该是主动避免这种交互吧。

elu_ligao

[[  -e /data/file ]] && read -p "the file is exit, y to continue"  key || cp /home/file /data/file
[[ $key = "y" ]] && cp -f /home/file /data/file