If one wants to search for a new line, one has to use "\n." Here is an example where you search for a phrase, and delete the new line character after that phrase - joining two lines together. (echo a;echo x;echo y) | sed '/x$/ { N s:x\n:x: }' ...
D Delete up to the first embedded newline in the pattern space. Start next cycle, but skip reading from the input if there is still data in the pattern space. D会删除模式空间的第一行,该命令会删除到换行符含换行符在内的所有字符#例子如下:[root@localhost ~]# cat file1 first line last l...
which has each embedded newline preceded by a backslash.d Delete pattern space. Start next cycle.D If pattern space contains no newline, start a normal new cycle as if the d command was issued. Otherwise, delete text in the pattern space up to the first newline, and restart ...
Here is an example where you search for a phrase, and delete the new line character after that phrase - joining two lines together. (echo a;echo x;echo y) | sed '/x$/ { N s:x\n:x: }' which generates a xy However, if you are inserting a new line, don't use "\n" - ...
d:delete(删除),删除文本流中的特定行 $ sed '3d' data.txt //删除第三行 $ sed '3,$d' data.txt //删除第三行到行末 $ sed '/number 1/d' data.txt //删除匹配number 1的行 $ sed '/number 1/,/number 3/d' data.txt //删除匹配number 1的行到匹配number 3的行 ...
After going through the examples in this guide, you know how to usesedto replace strings in files. Thesedcommand is a powerful text manipulation utility with many advanced features. Next, learn how touse sed to delete a linefrom a text file or check out theawkorgawkcommand to learn about...
# delete the "#" and the new line character, s/#\n// }' file 你可以用下面命令查找前一行包含”ONE”下一行包含”TWO”的两行,并将它打印出来: #!/bin/sh sed -n ' /ONE/ { # found "ONE" - read in next line N # look for "TWO" on the second line ...
The ‘sed‘ command, short for stream editor, is a versatile and powerful text manipulation tool that operates on text streams, allowing users to perform various operations on data, such as search, replace, insert, and delete. ‘Sed’ uses regular expressions to define patterns for text manipul...
To delete lines that end with the[:blank:]character group, use the following command: sed -i '/[[:blank:]]$/d' input.txt This command deletes all lines that end with a space or a tab. Delete Line That Matches the Condition and One After It ...
Delete lines starting with a specific character To denote the starting of a line, we’ll use the caret (^) symbol. The following sed command will remove all the lines starting with a digit. Here, the character group “[:digit:]” describes all digits (0-9). sed '/^[[:digit:]]/d...