關(guān)于循環(huán)讀取的一個信息

love2008

我有一個這樣的shell：
while read filename
do
echo "db2 instname:"$filename

done<`ps -ef|grep -i db2inst1|grep -v grep|awk '{ print $1 }'|sort|uniq`



[db2inst1@localhost ~]$ while read filename
> do
> echo "db2 instname:"$filename
>
> done<`ps -ef|grep -i db2inst1|grep -v grep|awk '{ print $1 }'|sort|uniq`
-bash: `ps -ef|grep -i db2inst1|grep -v grep|awk '{ print $1 }'|sort|uniq`: ambiguous redirect
[db2inst1@localhost ~]$
[db2inst1@localhost ~]$
[db2inst1@localhost ~]$
[db2inst1@localhost ~]$ ps -ef|grep -i db2inst1|grep -v grep|awk '{ print $1 }'|sort|uniq
db2inst1
root
[db2inst1@localhost ~]$

可是執(zhí)行后報錯：
-bash: `ps -ef|grep -i db2inst1|grep -v grep|awk '{ print $1 }'|sort|uniq`: ambiguous redirect

幫忙看下！謝謝！

關(guān)陰月飛

回復(fù) 1# love2008

1.     while read filename
   
2. do
   
3. echo "db2 instname:"$filename
   
4. 
   
5. done< <(ps -ef|grep -i db2inst1|grep -v grep|awk '{ print $1 }'|sort|uniq)

復(fù)制代碼