我的代码有什么问题?
#!/bin/sh
LOOK_FOR="$1"
for i in `find $2 -name "*jar"`; do
echo "Looking in $i ..."
#jar tvf $i | grep $LOOK_FOR > /dev/null
jar tvf "$i" | grep "$LOOK_FOR"
if [ $? == 0 ] ; then
echo "==> Found \"$LOOK_FOR\" in $i"
fi
done #line 13
输出
wk@wk-laptop:$ sh lookjar.sh org/apache/axis/message/addressing/EndpointReference /media/0C06E20B06E1F61C/uengine/uengine
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/build/uengine_settings.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/WebContent/uengine-web/lib/FCKeditor/WEB-INF/lib/commons-fileupload.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/WebContent/uengine-web/lib/FCKeditor/WEB-INF/lib/FCKeditor-2.3.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/defaultcompany/WebContent/uengine-web/processmanager/signedmetaworks.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/hsqldb/lib/hsqldb.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/hsqldb/lib/servlet.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/src/lib/commons-discovery.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/src/lib/google.jar ...
[: 13: 1: unexpected operator
Looking in /media/0C06E20B06E1F61C/uengine/uengine/src/lib/jxl.jar ...
答案 0 :(得分:70)
您需要在=
行中使用==
代替[ $? == 0 ]
。
答案 1 :(得分:8)
您应该将其更改为:
if [ $? -eq 0 ]; then
...
-eq
进行数字比较。
您还可以利用shell中返回值0被视为成功的事实,并编写如下代码:
if jar tvf "$i" | grep "$LOOK_FOR"; then
...
答案 2 :(得分:2)
#!/bin/sh
LOOK_FOR="$1"
find $2 -name "*jar"`| while read -r file
echo "Looking in $file ..."
jar tvf "$file" | grep "$LOOK_FOR"
if [ $? -eq 0 ] ; then
echo "==> Found \"$LOOK_FOR\" in $file"
fi
done
答案 3 :(得分:-1)
尝试:
if [[ $? == 0 ]]; then
echo "==> Found \"$LOOK_FOR\" in $i"
fi