请教C shell 中出现foreach: No match问题。如何解决！谢谢

cicarli

各位，这是csh程序
$DAT=/sbcimp/dyn/data/WM_COPSAU_DEV/dat/in/cops2wispa/aftcheck


foreach i ( $DAT/PC_FDE_2.temp* )
    /usr/bin/rm -f $i
end

如果$DAT路径下有PC_FDE_2.temp，PC_FDE_2.temp2等,命令运行正常，
但如果不存在PC_FDE_2.temp等，运行时提示foreach: No match的错误，并且foreach下的所有命令都没执行。

foreach语法有什么作用。要怎么改。谢谢。

cicarli

同志们。帮忙啊。

mpstat

不懂csh，纯支持帮顶

waker

foreach name (wordlist)
...
end

Successively sets the variable name to each member of wordlist and executes the sequence of commands between this command and the matching end. (Both foreach and end must appear alone on separate lines.) The builtin command continue may be used to continue the loop prematurely and the builtin command break to terminate it prematurely. When this command is read from the terminal, the loop is read once prompting with 'foreach? ' (or prompt2) before any statements in the loop are executed. If you make a mistake typing in a loop at the terminal you can rub it out.

qyy1011

回复 1# cicarli


    你可以先通过（ls -ur $na/path/xxx.*）
然后检查 if ($status ==0) 来判断是否为空，从而防止foreach的错误。

cjaizss

就相当于for i in ......
do
....
done