Sed 匹配字段后在其前后添加文本方法

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使用Sed 匹配字段后在其前后添加文本方法：

修改文本test.txt中BUGID在其前一行加上just a test for add something ahead BUGID

sed “/匹配字段/i加上想要插入到匹配字段前一行的内容” 文件名

dwm@dwm:~/dongwuming/sed_test$ cat test.txtjust a testBUGID: 11111111JiraID:22222222例如(三种格式都可以)：dwm@dwm:~/dongwuming/sed_test$sed "/BUGID/i just a test for add something ahead BUGID" test.txtjust a testjust a test for add something ahead BUGIDBUGID: 11111111JiraID:22222222sed "/BUGID/i\just a test for add something ahead BUGID" test.txtjust a testjust a test for add something ahead BUGIDBUGID: 11111111JiraID:22222222dwm@dwm:~/dongwuming/sed_test$sed "/BUGID/ijust a test for add something ahead BUGID" test.txtjust a testjust a test for add something ahead BUGIDBUGID: 11111111JiraID:22222222

修改文本test.txt中BUGID在其后一行加上just a test for add something after BUGID：

sed “/匹配字段/a加上想要插入到匹配字段后一行的内容” 文件名

dwm@dwm:~/dongwuming/sed_test$ cat test.txtjust a testBUGID: 11111111JiraID:22222222    例如(三种格式都可以)：sed "/BUGID/a just a test for add something after BUGID" test.txtjust a testjust a test for add something after BUGIDBUGID: 11111111JiraID:22222222dwm@dwm:~/dongwuming/sed_test$sed "/BUGID/a\just a test for add something after BUGID" test.txtjust a testjust a test for add something after BUGIDBUGID: 11111111JiraID:22222222dwm@dwm:~/dongwuming/sed_test$sed "/BUGID/ajust a test for add something after BUGID" test.txtjust a testBUGID: 11111111just a test for add something after BUGIDJiraID:22222222

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