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Shell Programming and Scripting
Insert a string instead of blank lines
Post 302636847 by itkamaraj on Tuesday 8th of May 2012 04:45:09 AM
05-08-2012
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10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi friends,
I am looking for a line to find a particular string in my file and once found then replace with 2-3 blank lines before the string
Example:
aaa 11 bbb
1
2
3
aaa 22 bbb
4
5
6
Output (4 Replies)
Discussion started by: shaliniyadav
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2. Shell Programming and Scripting
All I want is to look for the pattern in the file...If I found it at # places... I want print lines after those pattern(line) until I find a blank line.
Log EXAMPLE :
MT:Exception caught
The following Numbers were affected:
1234
2345
2346
Error
java.lang.InternalError:... (3 Replies)
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Hi All,
In continuation of my previous thread 'Add text at the end of line conditionally', I need to further modfiy the file after adding text at the end of the line. Now, I need to add a fixed charater string at alternate lines starting from first line using awk or sed.My file is now as below:... (10 Replies)
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Hello,
I am trying to write a script that will count the number of characters for each line in a file and all the lines that have less than 80 characters and that are ending with a period, I want it to insert a blank line after them immediately. But, for whatever reason the condition if ]] is... (3 Replies)
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6. Shell Programming and Scripting
Hi,
Consider a file named "testfile"
The contents of file are as below
first line added for test
second line added for test
third line added for test
fourth line added for test
fifth line added for test (5 Replies)
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7. Shell Programming and Scripting
My input data looks like this
...
-150 120 8
-150 122 7
-150 124 11
-150 126 8
-150 128 19
-150 130 13
-150 132 26
-150 134 38
-150 136 45
-150 138 62
-150 140 75
-150 142 110
-150 144 139
-150 146 138
-150 148 158
-150 150 173
-150 152 217 (5 Replies)
Discussion started by: chrisjorg
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8. Shell Programming and Scripting
Hello,
I have a file that I want to be able to insert a new line before every instance of a regex. I can get it to do this for each line that contains the regex, but not for each instance.
Contents of infile:
Test this 1...
Test this 2...
Test this 3... Test this 4... Test this... (2 Replies)
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9. Shell Programming and Scripting
I need to read a text file and insert a string every n lines, but also have the line counter restart when I come across a header string.
Line repeating working every 3 lines using code:
sed '0~3 s/$/\nINSERT/g' < INPUT/PATH/FILE_NAME.txt > OUTPUT/PATH/FILE_NAME.txt
I cannot seem to find... (1 Reply)
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Hi All
Need Help
I have a file with the below format (ABC.TXT) :
®¿¿ABCDHEJJSJJ|XCBJSKK01|M|7348974982790
HDFLJDKJSKJ|KJALKSD02|M|7378439274898
KJHSAJKHHJJ|LJDSAJKK03|F|9898982039999
(cont......)
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LEARN ABOUT LINUX
truncate
TRUNCATE(1) User Commands TRUNCATE(1) NAME
truncate - shrink or extend the size of a file to the specified size SYNOPSIS
truncate OPTION... FILE... DESCRIPTION
Shrink or extend the size of each FILE to the specified size A FILE argument that does not exist is created. If a FILE is larger than the specified size, the extra data is lost. If a FILE is shorter, it is extended and the extended part (hole) reads as zero bytes. Mandatory arguments to long options are mandatory for short options too. -c, --no-create do not create any files -o, --io-blocks treat SIZE as number of IO blocks instead of bytes -r, --reference=FILE use this FILE's size -s, --size=SIZE use this SIZE --help display this help and exit --version output version information and exit SIZE may be (or may be an integer optionally followed by) one of following: KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y. SIZE may also be prefixed by one of the following modifying characters: `+' extend by, `-' reduce by, `<' at most, `>' at least, `/' round down to multiple of, `%' round up to multiple of. Note that the -r and -s options are mutually exclusive. AUTHOR
Written by Padraig Brady. REPORTING BUGS
Report truncate bugs to bug-coreutils@gnu.org GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report truncate translation bugs to <http://translationproject.org/team/> COPYRIGHT
Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. SEE ALSO
dd(1), truncate(2), ftruncate(2) The full documentation for truncate is maintained as a Texinfo manual. If the info and truncate programs are properly installed at your site, the command info coreutils 'truncate invocation' should give you access to the complete manual. GNU coreutils 8.5 February 2011 TRUNCATE(1)