Sponsored Content
Top Forums Programming Delete specific lines in a text file Post 78282 by Lazzar on Monday 18th of July 2005 12:35:39 PM
Old 07-18-2005
maybe you are looking for this:
display the last 50 lines of something.txt
Code:
tail -n50 something.txt

there is also 'head' which displays the first few lines.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete blocks of lines from text file

Hello, Hello Firends, I have file like below. I want to remove selected blocks say abc,pqr,lst. how can i remove those blocks from file. zone abc { blah blah blah } zone xyz { blah blah blah } zone pqr { blah blah blah } (4 Replies)
Discussion started by: nrbhole
4 Replies

2. Shell Programming and Scripting

Delete lines prior to a specific date in a log file.

Hi all. I have a database log file in which log data get appended to it daily. I want to do a automatic maintainence of this log by going through the log and deleting lines belonging to a certain date. How should i do it? Please help. Thanks. Example. To delete all lines prior to Jun... (4 Replies)
Discussion started by: ahSher
4 Replies

3. Shell Programming and Scripting

Delete specific lines from a file

Hi, I have a file ( all_users.ldif ) of the following format: cn=orcladmin, cn=Users, dc=maximus,dc=com cn=PUBLIC, cn=Users, dc=maximus,dc=com cn=portal,cn=users,dc=maximus,dc=com cn=portal_admin,cn=users,dc=maximus,dc=com cn=uddi_publisher,cn=Users,dc=maximus,dc=com... (4 Replies)
Discussion started by: itzz.me
4 Replies

4. Shell Programming and Scripting

[bash help]Adding multiple lines of text into a specific spot into a text file

I am attempting to insert multiple lines of text into a specific place in a text file based on the lines above or below it. For example, Here is a portion of a zone file. IN NS ns1.domain.tld. IN NS ns2.domain.tld. IN ... (2 Replies)
Discussion started by: cdn_humbucker
2 Replies

5. Shell Programming and Scripting

how to delete lines from a file which starts with a specific pattern

I need to delete those lines from a file, which starts with 45. How to do it? (3 Replies)
Discussion started by: mady135
3 Replies

6. Shell Programming and Scripting

How to delete lines from text file?

hi guys, I have very large txt files (200GB) and just want to to delete the first two lines (headers). So far I used sed -i '1,2d' infile.txtbut this command always takes extremely long as it writes all again. Is there a better way to do it (ie just to delete the lines without writing all... (2 Replies)
Discussion started by: TuAd
2 Replies

7. UNIX for Dummies Questions & Answers

How to delete specific lines (2n+3 line, n=0,1,2...296) in a file?

Dear everyone, I have a file with 900 lines (there is only numbers in one line, no string), I only need the lines 2+3n (n=0,1...296), i.e line 2, 5, 8, 11...888. I tried google but only the results such as how to delete all the odd lines or all the even lines with 'awk' command. Thanks in... (4 Replies)
Discussion started by: phamnu
4 Replies

8. Shell Programming and Scripting

How to delete lines of a text file based on another text file?

I have 2 TXT files with with 8 columns in them(tab separated). First file has 2000 entries whereas 2nd file has 300 entries. The first file has ALL the lines of second file. Now I need to remove those 300 lines (which are in both files) from first file so that first file's line count become... (2 Replies)
Discussion started by: prvnrk
2 Replies

9. Shell Programming and Scripting

Delete specific lines from files based on another file

I have some text files in a folder named ff as follows. I need to delete the lines (in-place editing)in these files based on another file aa.txt. 32bm.txt: 249 253 A P - 0 0 8 0, 0.0 6,-1.4 0, 0.0 2,-0.4 -0.287 25.6-102.0 -74.4 161.1 37.1 13.3 10.9 250... (2 Replies)
Discussion started by: aden
2 Replies

10. Shell Programming and Scripting

Delete lines above and below specific line of text

I'm trying to remove a specific number of lines, above and below a specific line of text, highlighted in red: <STMTTRN> <TRNTYPE>CREDIT <DTPOSTED>20151205000001 <TRNAMT>10 <FITID>667800001 <CHECKNUM>667800001 <MEMO>BALANCE </STMTTRN> <STMTTRN> <TRNTYPE>DEBIT <DTPOSTED>20151207000001... (8 Replies)
Discussion started by: bomsom
8 Replies
unix2dos(1)						      General Commands Manual						       unix2dos(1)

NAME
unix2dos - UNIX to DOS text file format converter SYNOPSYS
unix2dos [options] [-c convmode] [-o file ...] [-n infile outfile ...] Options: [-hkqV] [--help] [--keepdate] [--quiet] [--version] DESCRIPTION
This manual page documents unix2dos, the program that converts text files in UNIX format to DOS format. OPTIONS
The following options are available: -h --help Print online help. -k --keepdate Keep the date stamp of output file same as input file. -q --quiet Quiet mode. Suppress all warning and messages. -V --version Prints version information. -c --convmode convmode Sets conversion mode. Simulates unix2dos under SunOS. -o --oldfile file ... Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used. -n --newfile infile outfile ... New file mode. Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be used or you WILL lost your files. EXAMPLES
Get input from stdin and write output to stdout. unix2dos Convert and replace a.txt. Convert and replace b.txt. unix2dos a.txt b.txt unix2dos -o a.txt b.txt Convert and replace a.txt in ASCII conversion mode. Convert and replace b.txt in ISO conversion mode. unix2dos a.txt -c iso b.txt unix2dos -c ascii a.txt -c iso b.txt Convert and replace a.txt while keeping original date stamp. unix2dos -k a.txt unix2dos -k -o a.txt Convert a.txt and write to e.txt. unix2dos -n a.txt e.txt Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt. unix2dos -k -n a.txt e.txt Convert and replace a.txt. Convert b.txt and write to e.txt. unix2dos a.txt -n b.txt e.txt unix2dos -o a.txt -n b.txt e.txt Convert c.txt and write to e.txt. Convert and replace a.txt. Convert and replace b.txt. Convert d.txt and write to f.txt. unix2dos -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt DIAGNOSTICS
BUGS
The program does not work properly under MSDOS in stdio processing mode. If you know why is that so, please tell me. AUTHOR
Benjamin Lin - ( blin@socs.uts.edu.au ) MISCELLANY
Tested environment: Linux 1.2.0 with GNU C 2.5.8 SunOS 4.1.3 with GNU C 2.6.3 MS-DOS 6.20 with Borland C++ 4.02 Suggestions and bug reports are welcome. SEE ALSO
dos2unix(1) 1995.03.31 unix2dos v2.2 unix2dos(1)
All times are GMT -4. The time now is 11:18 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy