Question

我有一个名为test的文件，它包含：

EMS_INSTANCES_DIR=/WEB_DATA/home/edofc24/EMS-INSTANCES/async
EMS_SHARED_CONFIG=/WEB_DATA/home/edofc24/EMS-INSTANCES/async/shared/config
EMS_SHARED_DATA=/WEB_DATA/home/edofc24/EMS-INSTANCES/async/shared/data
EMS_JMS_PORT=15244
EMS_INTERFACE=tcp://adecpcas:15244
EMS_KEYS=/WEB_DATA/home/edofc24/EMS-INSTANCES/keys

我想在=之后更改路径到/ test / path

我使用sed来做到这一点：

sed 's/\(^EMS_[SIJ].*\=\)\(\/.*[a-z]$\)/\1\/test/path/' test

但没有发生变化，为什么？。

Answer 1

sed 's:=/.*:=/test/path:' file

示例：

kent$  echo "EMS_INSTANCES_DIR=/WEB_DATA/home/edofc24/EMS-INSTANCES/async
EMS_SHARED_CONFIG=/WEB_DATA/home/edofc24/EMS-INSTANCES/async/shared/config
EMS_SHARED_DATA=/WEB_DATA/home/edofc24/EMS-INSTANCES/async/shared/data
EMS_JMS_PORT=15244
EMS_INTERFACE=tcp://adecpcas:15244"|sed 's:=/.*:=/test/path:'
EMS_INSTANCES_DIR=/test/path
EMS_SHARED_CONFIG=/test/path
EMS_SHARED_DATA=/test/path
EMS_JMS_PORT=15244
EMS_INTERFACE=tcp://adecpcas:15244

如果您想要进行更改，请添加-i

编辑评论：

sed 's@\(^EMS_[SIJ].*=/\).*@\1test/path/@' file

用相同的例子：

kent$  echo "EMS_INSTANCES_DIR=/WEB_DATA/home/edofc24/EMS-INSTANCES/async
EMS_SHARED_CONFIG=/WEB_DATA/home/edofc24/EMS-INSTANCES/async/shared/config
EMS_SHARED_DATA=/WEB_DATA/home/edofc24/EMS-INSTANCES/async/shared/data
EMS_JMS_PORT=15244
EMS_INTERFACE=tcp://adecpcas:15244"|sed 's@\(^EMS_[SIJ].*=/\).*@\1test/path/@'
EMS_INSTANCES_DIR=/test/path/
EMS_SHARED_CONFIG=/test/path/
EMS_SHARED_DATA=/test/path/
EMS_JMS_PORT=15244
EMS_INTERFACE=tcp://adecpcas:15244

sed命令和分组

1 个答案: