Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: using sed/awk to replace a block of text in a file?
Top Forums Shell Programming and Scripting using sed/awk to replace a block of text in a file? Post 302578840 by kiddsupreme on Friday 2nd of December 2011 12:26:42 PM
Old 12-02-2011
Quote:
Originally Posted by CarloM
Does the output from the command look correct?

Most unix commands won't change the input file. Normally you'd redirect the output to another (temporary) file and move it back to the original, but since you're on RHEL you should be able to use sed -i to change the input file inplace.
So I decided to show you my crude way of doing this. Not sure if there is a more elegant solution out there, but here is what I came up with:

Code:
#!/bin/sh
# Script to prompt you for original csv name and the new csv name
#
rm test*
echo "Provide the name of the original csv (e.g. DC_ACCESS_2011.csv) Note: CASE MATTERS!!"
read originalcsv
echo "Please provide request name of new csv"
read newcsv
sed '1,8{/"/d}' $originalcsv > test1.csv 
sed 's!\"Element.*!Hostname,Interface,Number of Errors,Bandwidth Utilization!' test1.csv > test2.csv 
sed '/Auto Range/d' test2.csv > test3.csv
sed '/From/d' test3.csv > test4.csv
sed '/To:/d' test4.csv > test5.csv
sed -e 's/-Fast/,Fast/; s/-Gig/,Gig/; s/-Port/,Port/; s/-Ten/,Ten/; s/"/ /g' test5.csv  > test6.csv
sed '/^$/d' test6.csv > $newcsv
rm test*
exit 0

The original csv is as follows:

Code:
"eDir Top N Report","logoRpt"
"All LAN Interface for DC_ACCESS"
"Shown: Errors above 1.0 K or BW Util above 70.0"

"","Errors","BW Util"
""," ","%"
"","Above","Above"
"","",""
"Element","1.0 K","70.0"
"ios6-qad-rowa2-TenGigabitEthernet6/4",887644.00000000,0.42693967
"ios6-wbd-rowmbaa3-GigabitEthernet2/42",19422.00000000,0.00515052
"ios6-wbd-rowmbaa4-GigabitEthernet2/42",18655.00000000,0.00273238

"Auto Range:  Previous 4 Weeks","Subject:  DC_ACCESS","Created: 11/28/2011 17:50:45"
"From:  10/31/2011 00:00","","Time Zone: (GMT-08:00) Pacific Time"
"To:  11/27/2011 23:59"

And what I end up with:

Code:
Hostname,Interface,Number of Errors,Bandwidth Utilization
 ios6-qad-rowa2,TenGigabitEthernet6/4 ,887644.00000000,0.42693967
 ios6-wbd-rowmbaa3,GigabitEthernet2/42 ,19422.00000000,0.00515052
 ios6-wbd-rowmbaa4,GigabitEthernet2/42 ,18655.00000000,0.00273238

Again, fairly crude, but I guess it gets the job done.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to replace a range of text with sed or awk?

Howdy! I'm trying to automate editing of a configuration file (custom.conf for GDM). I need to find every line between a line that starts with "" and the next line that starts with "", I want to preserve that line, but then delete all the lines in that configuration section and then insert... (3 Replies)
Discussion started by: TXTad
3 Replies

2. Shell Programming and Scripting

pattern replace inside text file using sed

Hi, I have a situation where I want to replace some occurrences of ".jsp" into ".html" inside a text file. For Example: If a pattern found like <a href="http://www.mysite.com/mypage.jsp"> it should be retained. But if a pattern found like <a href="../mypage.jsp"> it should be changed to... (4 Replies)
Discussion started by: meharo
4 Replies

3. Shell Programming and Scripting

replace block of text with content of another file

Hello, file1: not to be changed not to be changed <start> old stuff old stuff old stuff <end> not to be changed not to be changed file2: new text new text desired output: (3 Replies)
Discussion started by: ripat
3 Replies

4. Shell Programming and Scripting

How to replace multiple text in a file using sed

can anyone please help me in the below scenario: File1: Hello1 Hello1 i want to use sed to replace multiple occurances of Hello1 in file 1 to welcome. Thanks a ton for the help (9 Replies)
Discussion started by: amithkhandakar
9 Replies

5. Shell Programming and Scripting

Delete first block of text with sed/awk

Hello, guys! "filename" has blocks with three lines each in this fashion: 93909286 #verified has one bug 10909286 #unverified pending 10909286 #unverified pendingThe above example has duplicate blocks, and I have tried using sed to remove just one block... The... (2 Replies)
Discussion started by: teresaejunior
2 Replies

6. UNIX for Dummies Questions & Answers

Use sed to replace but only in a specific column of the text file

Hi, I would like to use sed to replace NA to x ('s/NA/x/g'), but only in the 5th column of the space delimited text file, nowhere else. How do I go about doing that? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies

7. UNIX for Dummies Questions & Answers

Using sed to replace / in text file

Hi, I want to use sed to replace " /// " with "///" in a text file. However I am getting error messages when I use sed 's/ /// /////g' input.txt > output.txt. How do I go about doing this in sed? Input: 219518_s_at 0.000189 ELL3 / SERINC4 Output: 219518_s_at 0.000189 ELL3/SERINC4 (5 Replies)
Discussion started by: evelibertine
5 Replies

8. Shell Programming and Scripting

Pattern replace from a text file using sed

I have a sample text format as given below <Text Text_ID="10155645315851111_10155645333076543" From="460350337461111" Created="2011-03-16T17:05:37+0000" use_count="123">This is the first text</Text> <Text Text_ID="10155645315851111_10155645317023456" From="1626711840902323"... (3 Replies)
Discussion started by: my_Perl
3 Replies

9. Debian

Using awk and sed to replace text

Good Day Every one I have a problem finding and replacing text in some large files that will take a long time to manually edit. Example text file looks like this #Example Large Text File unix linux dos squid bind dance bike car plane What im trying to do is to edit all the... (4 Replies)
Discussion started by: linuxjunkie
4 Replies

10. UNIX for Beginners Questions & Answers

Help with awk or sed Command to Replace Text in Files

Hello Everyone, I have many files like so: file1.txt file2.txt file3.txt Within each file I have many lines of random text separated by commas like so: abcAAA,123,defAA,456777,ghiA,789 jklB,101,mnoBBB,11211,pqrB,13111 stuCC,415,vwxCCCC,161,yzaC,718 I am trying to use SED or AWK to... (4 Replies)
Discussion started by: D3U5X
4 Replies

LEARN ABOUT DEBIAN

ocr4gamera

OCR4GAMERA(1)															     OCR4GAMERA(1)

NAME

       ocr4gamera - OCR system using the Gamera framework

USAGE

       ocr4gamera -x <traindata> [options] <imagefile>

OPTIONS

       -v <int>, --verbosity=<int>
	      Set verbosity level to <int>.  Possible values are 0 (default): silent operation; 1:  information on progress; >2: segmentation info
	      is written to PNG files with prefix debug_.

       -h, --help
	      Display help and exit.

       -d, --deskew
	      Do a skew correction (recommended).

       -f, --filter
	      Filter out very large (images) and very small components (noise).

       -a, --automatic-group
	      Autogroup glyphs with classifier.

       -x <file>, --xmlfile=<file>
	      Read training data from <file>.

       -o <xml>, --output=<xml>
	      Write recognized text to file <xml> (otherwise it is written to stdout).

       -c <csv>, --extra_chars_csvfile=<csv>
	      Read additional class name conversions from file <csv>.  <csv> must contain one conversion per line.

       -R <rules>, --heuristic_rules=<rules>
	      Apply heuristic rules <rules> for disambiguation of some chars.  <rules> can be roman (default) or none (for no rules).

       -D, --dictionary-correction
	      Correct words using a dictionary (requires aspell or ispell).

       -L <lang>, --dictionary-language=<lang>
	      Use <lang> as language for aspell (when option -D is set).

       -e <int>, --edit-distance=<int>
	      Correct words only when edit distance not more than <int>.

																     OCR4GAMERA(1)
All times are GMT -4. The time now is 03:43 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy