Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Delete lines with a word and their above lines Post 302834573 by the_simpsons on Friday 19th of July 2013 09:38:55 AM
Old 07-19-2013
Delete lines with a word and their above lines

Hi, i have a file like this:

Code:
A1
kdfjdljfdkljfdlf

A2
lfjdlfkjddkjf

A3
***no hit***

A4
ldjfldjfdk

A5
***no hit***

A6
jldfjdlfjdlkfjd

I want to remove the lines "***no hit*** and their above line to get an output file like this:
Code:
A1
kdfjdljfdkljfdlf

A2
lfjdlfkjddkjf

A4
ldjfldjfdk

A6
jldfjdlfjdlkfjd

Thanks!!


Moderator's Comments:
Mod Comment Use code tags please, see PM.

Last edited by zaxxon; 07-19-2013 at 10:46 AM.. Reason: code tags
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

delete lines containing a specific word in afile

Hi, Please suggest how to write a shell script which delets all the lines containing the word unix in the files supplied as argument in the shell. (4 Replies)
Discussion started by: sireesha9
4 Replies

2. Shell Programming and Scripting

search a word and delete consecutive lines below it

Hi all coders, I need a help to process some data. I have this file, 3 09/21/08 03:32:07 started undef mino Oracle nmx004.wwdc.numonyx.co m Message Text : The Oracle session with the PID 1103 has a CPU time consuming of 999.00... (3 Replies)
Discussion started by: vikas027
3 Replies

3. Shell Programming and Scripting

How to delete lines in a file that have duplicates or derive the lines that aper once

Input: a b b c d d I need: a c I know how to get this (the lines that have duplicates) : b d sort file | uniq -d But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Discussion started by: necroman08
3 Replies

4. UNIX for Dummies Questions & Answers

How get only required lines & delete the rest of the lines in file

Hiiii I have a file which contains huge data as a.dat: PDE 1990 1 9 18 51 28.90 24.7500 95.2800 118.0 6.1 0.0 BURMA event name: 010990D time shift: 7.3000 half duration: 5.0000 latitude: 24.4200 longitude: 94.9500 depth: 129.6000 Mrr: ... (7 Replies)
Discussion started by: reva
7 Replies

5. Shell Programming and Scripting

How to delete all lines before a specific word?

Let's say we have a file containing: alllllsadfsdasdf qwdDDDaassss ccxxcxc#2222 dssSSSSddDDDD D1Sqn2NYOHgTI Hello Alex ssS@3 Ok, and let's say we want to delete all words from D1Sqn2NYOHgTI and back, this means to delete the words (and the lines of them) : alllllsadfsdasdf... (2 Replies)
Discussion started by: hakermania
2 Replies

6. Shell Programming and Scripting

need to delete all lines from a group of files except the 1st 2 lines

Hello, I have a group of text files with many lines in each file. I need to delete all the lines in each and only leave 2 lines in each file. (3 Replies)
Discussion started by: script_op2a
3 Replies

7. Shell Programming and Scripting

Search the word to be deleted and delete lines above this word starting from P1 to P3

Hi, I have to search a word in a text file and then I have to delete lines above from the word searched . For eg suppose the file is like this: Records P1 10,23423432 ,77:1 ,234:2 P2 10,9089004 ,77:1 ,234:2 ,87:123 ,9898:2 P3 456456 P1 :123,456456546 P2 abc:324234 (2 Replies)
Discussion started by: vsachan
2 Replies

8. UNIX for Advanced & Expert Users

In a huge file, Delete duplicate lines leaving unique lines

Hi All, I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space. I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Discussion started by: krishnix
16 Replies

9. Shell Programming and Scripting

search and replace, when found, delete multiple lines, add new set of lines?

hey guys, I tried searching but most 'search and replace' questions are related to one liners. Say I have a file to be replaced that has the following: $ cat testing.txt TESTING AAA BBB CCC DDD EEE FFF GGG HHH ENDTESTING This is the input file: (3 Replies)
Discussion started by: DeuceLee
3 Replies

10. Shell Programming and Scripting

Sed/awk to delete single lines that aren't touching other lines

Hello, I'm trying to figure out how to use sed or awk to delete single lines in a file. By single, I mean lines that are not touching any other lines (just one line with white space above and below). Example: one two three four five six seven eight I want it to look like: (6 Replies)
Discussion started by: slimjbe
6 Replies
is  a  text formatter.	Its input consists of the text to be out-
put, intermixed with formatting commands.  A  formatting  command
is  a  line  containing  the  control character followed by a two
character command name, and possibly one or more arguments.   The
control  character is initially . (dot).  The formatted output is
produced on standard output.  The formatting commands are  listed
below, with being a number, being a character, and being a title.
A + before n means it may be signed,  indicating  a  positive  or
negative change from the current value.  Initial values for where
relevant, 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.
All times are GMT -4. The time now is 01:26 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy