Shulou(Shulou.com)06/01 Report--

Today, I would like to talk to you about the common usage of Sed, which may not be well understood by many people. in order to make you understand better, the editor has summarized the following content for you. I hope you can get something from this article.

Replace all root in the file with abc:

Sed's Rot _ passwd ABCC _ G 'output only the execution result and does not modify the file.

Sed-I's _

Line 2 of the print file:

Sed-n 2p passwd

Print lines 2-5

Sed-n 2pm 5p passwd

Insert a line after line 2 of the file

Sed'2a 106, dandanje Caso 'passwd

Insert a line before the second line of the file

Sed'2i 106, dandan, Caso 'passwd.

Delete lines 2 to 5 from the file

Sed '2pm 5d' passwd

Implement to fetch the line matching begin until the end of the line matching to the end character

Sed-n'/ begin/,/end/p' 1.txt

Print the line that matches the abc to the last line

Sed-n'/ abc/,$p' file.txt

Intercept logs from six days ago

Sed-n'/'"$(date-d"-6 day "+% b"d)"'/, $p' / home/oracle/test/alert_orcl11g.log | more

Sed-n'/'"$(date-d"-6 day "+% b"d)"'/, $p' / home/oracle/test/alert_orcl11g.log > alert.log

Intercept the log between two strings

N matches the next line of the line

N appended to the next line

P print

P print to\ n

B unconditional jump does not match and then does not execute

T conditional jump does not match after execution

: fun1

When matching B, b func1 is similar to goto to jump to the previous A match

The splicing mismatch after N judgment

N filter mismatch after judgment

# sed'/ A / {ptincter fun1 1; n;: fun2 / B / {ptinceb fun1}; n; b fun2} 'file1-n

Find a specific string

Sed-n "/ 2010 print 13 print 30 php/ Jr. 2010 awk 17 awk 30 awk /" p awk | 2010-F:'/'. 'php/ {print $2}' | uniq-c

168576 13

301975 14

285616 15

299248 16

154377 17

Sed-n "/ 2010 action/ action/ / 2010 awk'{if ($3)} else if ($4) {print $4}}'| sort | uniq-c | sort-nr

533271 action=plInfo

132742 action=FriendPet

101258 action=Info

Awk'/ string 1 / {aqum1} a {b=b?b "\ n" $0VAND 0position if (baking / string 2 /) {print bounding b = ""}} 'file

Sed-n'/ string 1 / {ptince1} / {ptince1} / {ptince1tre / {ptsmb1} / {ptince2tre / {ptinceb1}; ntb2} 'file.

Awk'/ string 1 / {aqum1} a {b=b?b "\ n" $0VAND 0position if (baking / string 2 /) {print bounding b = ""}} 'file

Sed-n'/ string 1 / {ptincehterb};: mtterxbank _ lzj / {xtern _ politics / string _ 2 _ _! {bm;}; ptterb}; x 'file

After reading the above, do you have any further understanding of the common usage of Sed? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

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