Grep three consecutive lines if each lines contains certain string
say we have :
should print:
already in one of the threads below command is used for 2 consecutive line. I want similar command for 3 consecutive line:
Also, please explain how the command works. I have very basic knowledge about awk.
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edit by bakunin: please use CODE-tags yourself. I have provided a few from my own wealth of them as a welcome give, but from now on i will tax every occasion where i have to spend some on your texts with infraction points. Use CODE-tags, as required by the forum rules and we will get along well, though.
need help on this. let say i hv 1 file contains as below:
STRING
Description bla bla bla
Description yada yada yada
Data bla bla
Data yada yada
how do i want to display n lines after the string?
thanks in advance! (8 Replies)
Hi,
I have a log file that I need to monitor as it's being written to, and I want to exclude certain strings from the output. At the moment I'm using ...
tail -f LogFileName_`date +%d`.log | egrep -v "First String To Exclude | 2nd string | 3rd string" ...which works OK - but now I need to... (1 Reply)
I have several very large file that are extracts from Oracle tables. These files are formatted in XML type syntax with multiple entries like:
<ROW>
some information
more information
</ROW>
I want to grep for some words, then print all lines between <ROW> AND </ROW>. Can this be done with AWK?... (7 Replies)
This is a variation of an earlier post found here:
unixcom/shell-programming-scripting/159821-merge-two-non-consecutive-lines.html
User Bartus11 was kind enough to solve that example.
Previously, I needed help combining two lines that are non-consecutive in a file. Now I need to do the... (7 Replies)
am using AIX and I have a string "There is no process to read data written to a pipe". I want to get the output 2 lines before and 4 lines after this string. The string is present like more than 100 times in the log and I want to output, the last result in the log with this string
I tried using... (1 Reply)
I have a file lake this
cat ex1.txt
</DISCOUNTS>
<B2B_SPECIFICATION elem="0">
<B2B_SPECIFICATION elem="0">
<DESCR>Netti 2 </DESCR>
<NUMBER>D02021507505</NUMBER>
</B2B_SPECIFICATION>
<B2B_SPECIFICATION elem="1">
<DESCR>Puhepaketti</DESCR>... (2 Replies)
I have a large dataset with following structure;
C 0001 Carbon
D SAR001 methane
D SAR002 ethane
D SAR003 propane
D SAR004 butane
D SAR005 pentane
C 0002 Hydrogen
C 0003 Nitrogen
C 0004 Oxygen
D SAR011 ozone
D SAR012 super oxide
C 0005 Sulphur
D SAR013... (3 Replies)
Hello,
I'm trying to remove the duplicate consecutive lines with specific string "WARNING".
File.txt
abc;
WARNING 2345
WARNING 2345
WARNING 2345
WARNING 2345
WARNING 2345
bcd;
abc;
123
123
123
WARNING 1234
WARNING 2345
WARNING 2345
efgh; (6 Replies)
Discussion started by: Mannu2525
6 Replies
LEARN ABOUT MINIX
roff
is a text formatter. Its input consists of the text to be out-
put, intermixed with formatting commands. A formatting commandis a line containing the control character followed by a twocharacter command name, and possibly one or more arguments. Thecontrol character is initially . (dot). The formatted output isproduced on standard output. The formatting commands are listedbelow, with being a number, being a character, and being a title.A + before n means it may be signed, indicating a positive ornegative change from the current value. Initial values for whererelevant, are given in parentheses.
.ad Adjust right margin.
.ar Arabic page numbers.
.br Line break. Subsequent text will begin on a new line.
.bl n Insert n blank lines.
.bp +n Begin new page and number it n. No n means +1.
.cc c Control character is set to c.
.ce n Center the next n input lines.
.de zz Define a macro called zz. A line with .. ends definition.
.ds Double space the output. Same as .ls 2.
.ef t Even page footer title is set to t.
.eh t Even page header title is set to t.
.fi Begin filling output lines as full as possible.
.fo t Footer titles (even and odd) are set to t.
.hc c The character c (e.g., %) tells roff where hyphens are permitted.
.he t Header titles (even and odd) are set to t.
.hx Header titles are suppressed.
.hy n Hyphenation is done if n is 1, suppressed if it is 0. Default is 1.
.ig Ignore input lines until a line beginning with .. is found.
.in n Indent n spaces from the left margin; force line break.
.ix n Same as .in but continue filling output on current line.
.li n Literal text on next n lines. Copy to output unmodified.
.ll +n Line length (including indent) is set to n (65).
.ls +n Line spacing: n (1) is 1 for single spacing, 2 for double, etc.
.m1 n Insert n (2) blank lines between top of page and header.
.m2 n Insert n (2) blank lines between header and start of text.
.m3 n Insert n (1) blank lines between end of text and footer.
.m4 n Insert n (3) blank lines between footer and end of page.
.na No adjustment of the right margin.
.ne n Need n lines. If fewer are left, go to next page.
.nn +n The next n output lines are not numbered.
.n1 Number output lines in left margin starting at 1.
.n2 n Number output lines starting at n. If 0, stop numbering.
.ni +n Indent line numbers by n (0) spaces.
.nf No more filling of lines.
.nx f Switch input to file f.
.of t Odd page footer title is set to t.
.oh t Odd page header title is set to t.
.pa +n Page adjust by n (1). Same as .bp
.pl +n Paper length is n (66) lines.
.po +n Page offset. Each line is started with n (0) spaces.
.ro Page numbers are printed in Roman numerals.
.sk n Skip n pages (i.e., make them blank), starting with next one.
.sp n Insert n blank lines, except at top of page.
.ss Single spacing. Equivalent to .ls 1.
.ta Set tab stops, e.g., .ta 9 17 25 33 41 49 57 65 73 (default).
.tc c Tabs are expanded into c. Default is space.
.ti n Indent next line n spaces; then go back to previous indent.
.tr ab Translate a into b on output.
.ul n Underline the letters and numbers in the next n lines.