Sponsored Content
Top Forums Shell Programming and Scripting Using sed to replace specific character and specific position Post 302360891 by Scott on Sunday 11th of October 2009 07:50:27 AM
Old 10-11-2009
Hi.

Sed will read a line of any length, but the command block { } has a 32K -1 limit (32767) (this may be implementation-specific)

Code:
# sed "s/\(.\{32767\}\)...../\1 XXXXxxxX/" file1 > file2
# echo $?
# 0
 
# sed "s/\(.\{32768\}\)...../\1 XXXXxxxX/" file1 > file2
sed: -e expression #1, char 34: Invalid content of \{\}

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

using sed to replace a specific string on a specific line number using variables

using sed to replace a specific string on a specific line number using variables this is where i am at grep -v WARNING output | grep -v spawn | grep -v Passphrase | grep -v Authentication | grep -v '/sbin/tfadmin netguard -C'| grep -v 'NETWORK>' >> output.clean grep -n Destination... (2 Replies)
Discussion started by: todd.cutting
2 Replies

2. Shell Programming and Scripting

Insert character in a specific position of a file

Hi, I need to add Pipe (|) at 5th and 18th position of all records a file. How can I do this? I tried to add it at 5th position using the below code. It didnt work. Please help!!! awk '{substr($0,5,1) ~ /|/}{print}' $input_file > $temp_file (1 Reply)
Discussion started by: gpaulose
1 Replies

3. Shell Programming and Scripting

how to replace specific character , if possible using sed

My script is extracting data from SQl session, however sometimes the result contains one or multiple space after/before any numerical value. e,g . "123","1 34","1 3 45", "43 5" How to remove these unwanted spaces..so that I can get the following result : "123","134",1345","435" (1 Reply)
Discussion started by: mady135
1 Replies

4. Shell Programming and Scripting

Sed position specific replace

I'm drawing a blank on how to use sed to replace selectively based on position in the string (vs nth occurence): hello.|there.|how.|are.|you.| I want the period removed in the 3rd item (as defined by the pipe delimiter) if a period is present. So the result in this case would be: ... (2 Replies)
Discussion started by: tiggyboo
2 Replies

5. Shell Programming and Scripting

Using sed to replace a string in a specific position

I asked this before, but my problem got more complicated. Heres what I am trying to do: I'm trying to replace a string at a certain location with another string. Heres the file I'm trying to change: \E I want to replace the escape code at the 3rd line, 2nd column with this escape code... (3 Replies)
Discussion started by: tinman47
3 Replies

6. Shell Programming and Scripting

Replace specific field on specific line sed or awk

I'm trying to update a text file via sed/awk, after a lot of searching I still can't find a code snippet that I can get to work. Brief overview: I have user input a line to a variable, I then find a specific value in this line 10th field in this case. After asking for new input and doing some... (14 Replies)
Discussion started by: crownedzero
14 Replies

7. Shell Programming and Scripting

Delete character on specific position

Hi, im still new in unix. i want to ask how to delete character on specific position in line, lets say i want to remove 5 character from position 1000, so characters from position 1000-1005 will be deleted. i found this sed command can delete 4 characters from position 10, but i dont know if... (7 Replies)
Discussion started by: bluesue
7 Replies

8. Linux

Removing a character at specific position in a column

Hi, I have a file like this (about 8 columns in total, this being the 2nd column) gi_49482297_ref_YP_039521.1_ gi_49482297_ref_YP_039521.1_ gi_49482315_ref_YP_039539.1_ gi_49482315_ref_YP_039539.1_I want to remove the _ at the end of the line. And at later stages I would want to replace the... (5 Replies)
Discussion started by: Syeda Sumayya
5 Replies

9. Post Here to Contact Site Administrators and Moderators

Search for a pattern and replace a space at specific position with a Character in File

In file, we have millions of records each of 1000 in length. And at specific position say 800 there is a space, we need to replace it with Character X if the ID in that row starts with 123. So far i have used the below which is replacing space at that position to X but its not checking for... (3 Replies)
Discussion started by: Jagmeet Singh
3 Replies

10. Shell Programming and Scripting

Count specific character of a file in each line and delete this character in a specific position

I will appreciate if you help me here in this script in Solaris Enviroment. Scenario: i have 2 files : 1) /tmp/TRANSACTIONS_DAILY_20180730.txt: 201807300000000004 201807300000000005 201807300000000006 201807300000000007 201807300000000008 2)... (10 Replies)
Discussion started by: teokon90
10 Replies
merge(1)						      General Commands Manual							  merge(1)

NAME
merge - three-way file merge SYNOPSIS
file1 file2 file3 DESCRIPTION
combines two files that are revisions of a single original file. The original file is file2, and the revised files are file1 and file3. identifies all changes that lead from file2 to file3 and from file2 to file1, then deposits the merged text into file1. If the option is used, the result goes to standard output instead of file1. An overlap occurs if both file1 and file3 have changes in the same place. prints how many overlaps occurred, and includes both alterna- tives in the result. The alternatives are delimited as follows: lines in file1 lines in file3 If there are overlaps, edit the result in file1 and delete one of the alternatives. This command is particularly useful for revision control, especially if file1 and file3 are the ends of two branches that have file2 as a common ancestor. EXAMPLES
A typical use for is as follows: 1. To merge an RCS branch into the trunk, first check out the three different versions from RCS (see co(1)) and rename them for their revision numbers: 5.2, 5.11, and 5.2.3.3. File 5.2.3.3 is the end of an RCS branch that split off the trunk at file 5.2. 2. For this example, assume file 5.11 is the latest version on the trunk, and is also a revision of the "original" file, 5.2. Merge the branch into the trunk with the command: 3. File 5.11 now contains all changes made on the branch and the trunk, and has markings in the file to show all overlapping changes. 4. Edit file 5.11 to correct the overlaps, then use the command to check the file back in (see ci(1)). WARNINGS
uses the ed(1) system editor. Therefore, the file size limits of ed(1) apply to AUTHOR
was developed by Walter F. Tichy. SEE ALSO
diff3(1), diff(1), rcsmerge(1), co(1). merge(1)
All times are GMT -4. The time now is 03:46 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy