cshell脚本中read的问题

[leon8023]

请教大家个问题，我使用的环境是IBM服务器，操作系统AIX，写了一个c shell脚本，但是老是出错，哪位高人帮看看，脚本如下（文件名111）：
#!/bin/csh
echo abc
read ttt
echo $ttt

执行结果如下：
%csh -xv 111

echo abc^M
echo abc^M
abc
read ttt^M
read ttt^M
/usr/bin/read[53]: ttt^M: is not an identifier
echo $ttt^M
ttt: Undefined variable.

[cceczjxy]

不是兼容性的问题吧,
直接 用./111来执行看看.

[hefuhua]

vim 打开把^M删除好了
这是dos或windows下的换行符号
或者
dos2unix 111


最好把
chmod a+x 111
为可执行的

[leon8023]

不是的，感觉好像是read的语法不对！所以一直很郁闷！

[cceczjxy]

csh -cxv ./111
这样执行就可有了

[leon8023]

删除了^M以后，还是不行！执行情况如下：
%111
abc
test
ttt: Undefined variable.

[hefuhua]

网上说csh没有read 功能

[hefuhua]

在csh里,替代read的用
set aaa=$<
echo $aaa

http://www.lslnet.com/linux/dosc1/20/linux-193251.htm

[leon8023]

晕！那我怎么在csh下输入一个字符呀？

[hefuhua]

From man csh:

$< Substitutes a line from the standard input, with no further
interpretation thereafter. It can be used to read from the
keyboard in a shell script. (+) While csh always quotes $<, as
if it were equivalent to `$<:q', tcsh does not. Furthermore,
when tcsh is waiting for a line to be typed the user may type
an interrupt to interrupt the sequence into which the line is
to be substituted, but csh does not allow this.

http://lists.freebsd.org/pipermail/freebsd-questions/2005-April/083947.html

[leon8023]

hefuhua 正解，已经解决！谢谢了！