Web-n tells sed not to print unless we explicitly ask it to. s/.*text4:// tells sed to remove any text from the beginning of the line to the final occurrence of text4:. If such a line is found, then the p tells sed to print it. Using grep -P $ command grep -oP '(?<=text4:).*' "lkpird sdfd" -o tells grep to print only the matching part. Web1 Oct 2008 · This is a more pragmatic method which uses tac (to reverse the order of the lines) and GNU sed:-. Code: tac input.txt sed -n '/192.168.12/,+3p' tac. EDIT: These solutions give the matched line and the three lines above. If only two lines above are required change 4 to 3, and 3 to 2 in the code.
How to Use the sed Command on Linux - How-To Geek
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Unix Sed Tutorial: Printing File Lines using Address and Patterns
Web*PATCH] cgroup/cpuset: Add a new isolated mems.policy type. @ 2024-09-04 4:02 hezhongkun 2024-09-04 6:04 ` kernel test robot ` (4 more replies) 0 siblings, 5 replies; 16+ messages in thread From: hezhongkun @ 2024-09-04 4:02 UTC (permalink / raw) To: hannes, mhocko, roman.gushchin Cc: linux-kernel, cgroups, linux-mm, lizefan.x, … Web*PATCH] cgroup/cpuset: Add a new isolated mems.policy type. @ 2024-09-04 4:02 hezhongkun 2024-09-04 6:04 ` kernel test robot ` (4 more replies) 0 siblings, 5 replies; 16+ messages in thread From: hezhongkun @ 2024-09-04 4:02 UTC (permalink / raw) To: hannes, mhocko, roman.gushchin Cc: linux-kernel, cgroups, linux-mm, lizefan.x, … Web21 Dec 2024 · Deleting lines from a particular file : SED command can also be used for deleting lines from a particular file. SED command is used for performing deletion operation without even opening the file. Examples: 1. To Delete a particular line say n in this example. Syntax: $ sed 'nd' filename.txt Example: $ sed '5d' filename.txt. mckinley kidd scotland tours review