Sponsored Content
Full Discussion: Delete lines inside a file.
Top Forums Shell Programming and Scripting Delete lines inside a file. Post 302263575 by demwz on Tuesday 2nd of December 2008 01:38:49 AM
Old 12-02-2008
sed -n 'G; s/\n/&&/; /^\([ -~]*\n\).*\n\1/d; s/\n//; h; P'
should remove duplicate lines.
what are selected lines ? by Number ?
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Delete lines in a file

I wish to delete lines from a log file. Should take a date string as a variable. Find the date in the file, get the line number for the string. Delete lines from 1 to that (line number - 1), all from within a shell script. Is that possible ?. Thnks, :confused: (6 Replies)
Discussion started by: umal
6 Replies

2. UNIX for Dummies Questions & Answers

delete lines in a file

I've got a file like this: Grid-ref= 443, 229 167 169 204 233 290 309 308 326 300 251 194 161 148 189 228 251 296 329 331 338 308 263 219 179 178 203 215 252 277 319 327 335 312 264 196 149 120 172 226 253 297 329 323 322 305 242 203 136 ... (20 Replies)
Discussion started by: su_in99
20 Replies

3. Shell Programming and Scripting

Deleting lines inside a file without opening the file

Hi, Just consider there are around 10 lines in a file. Now is it possible to delete the first 2 lines in the file without opening the file. No matter whatever the content of the file is, I just wanna delete the first 2 lines without opening the file. Is that possible? If so, please help me out.... (3 Replies)
Discussion started by: toms
3 Replies

4. Shell Programming and Scripting

Count lines between two patterns inside a file

Hi, Im doing a script to find the number of lines included inside a file newly. These lines are in between #ifdef FLAG1 and #else or #endif or #else and #endif. I tried like this, awk '/#ifdef Flag1/,/#e/{print}' aa.c | wc -l awk '/#ifndef Flag1/,/#endif/{print}' aa.c | awk... (6 Replies)
Discussion started by: priyadarshini
6 Replies

5. 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

6. 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

7. Shell Programming and Scripting

KSH SHELL: problem calculation number of lines inside compressed file

Hi Gurus, I am working with a korn shell script to simplify some operations of calculation number of lines inside compressed file. The called function (inside a cycle) is the following: ######################################### # F.ne: CheckCount #########################################... (3 Replies)
Discussion started by: GERMANICO
3 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

Delete the lines from file

I have a text file say g1.txt and content of this file is ...as below 1|HideCDrive, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v NoDrives /t REG_DWORD /d 4 /f, 2|HideRunButton, | : REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer"... (7 Replies)
Discussion started by: jalpasoni
7 Replies

10. Shell Programming and Scripting

Delete 40 lines after every 24 lines from a file

Hello, I have file of more than 10000 lines. I want to delete 40 lines after every 20 lines. e.g from a huge file, i want to delete line no from 34 - 74, then 94 - 134 etc and so on. Please let me know how i can do it. Best regards, (11 Replies)
Discussion started by: nehashine
11 Replies
LIQUIDSOAP(1)						      General Commands Manual						     LIQUIDSOAP(1)

NAME
liquidsoap - a multimedia streaming language SYNOPSIS
liquidsoap [options] [script|expression] DESCRIPTION
Liquidsoap is a programming language for describing multimedia streaming systems. It is very flexible, making simple things simple but giving a lot of control for advanced uses. Liquidsoap supports audio, video and MIDI streams, and a wide range of input/output operators including Icecast and various soundcard APIs. It can perform a broad range of signal processing, combine streams in various ways, support custom transitions, generate sound procedurally... and all this can be assembled as you wish. Input files can be accessed remotely, or even be synthesized on the fly using external scripts such as speech synthesis. Finally, interaction with a running liquidsoap instance is possible via telnet or socket. Liquidsoap scripts passed on the command line will be evaluated: they shall be used to define the streaming system to be ran. It is possi- ble to pass multiple scripts; they will all be ran successively, and definitions from one script can be used in subsequent ones. A script will be read from standard input if - is given as script filename. Information about scripting liquidsoap is available on our website: http://savonet.sf.net/ If the parameter is not a file it will be treated as an expression which will be executed. It is a convenient way to test simple one-line scripts. When running only one-liners, the default is to log messages directly on stdout rather than to a file. OPTIONS
- Read script from standard input. -- Stop parsing the command-line and pass subsequent items to the script. --debug Print debugging log messages. --dynamic-plugins-dir path Directory where to look for plugins. --errors-as-warnings Issue warnings instead of fatal errors for unused variables and ignored expressions. If you are not sure about it, it is better to not use it. --interactive Start an interactive interpreter. --list-plugins List all plugins (builtin scripting values, supported formats and protocols). --list-plugins-xml List all plugins (builtin scripting values, supported formats and protocols), output as XML. --no-pervasives Do not load pervasive script libraries. --version Display liquidsoap's version. -c, --check Check and evaluate scripts but do not perform any streaming. -cl, --check-lib Like --check but treats all scripts and expressions as libraries, so that unused toplevel variables are not reported. -d, --daemon Run in daemon mode. -f, --force-start For advanced dynamic uses: force liquidsoap to start even when no active source is initially defined. -h plugin Print the description of a plugin, eg. a builtin scripting function. -i Display infered types. -p, --parse-only Parse scripts but do not type-check and run them. -q, --quiet Do not print log messages on standard output. -r filename Process a request. -T, --disable-telnet Disable the telnet server. -U, --disable-unix-socket Disable the unix socket. -t, --enable-telnet Enable the telnet server. -u, --enable-unix-socket Enable the unix socket. -v, --verbose Print log messages on standard output. --conf-descr-key key Describe a configuration key. --conf-descr Show all configuration keys with their documentation. --conf-descr-liqi Show all configuration keys with their documentation in liqi (documentation wiki) format. --conf-dump Dump the configuration state -help, --help Display this list of options SEE ALSO
Our website http://savonet.sf.net/ and the HTML documentation coming with your distribution of liquidsoap. AUTHOR
Savonet team <savonet-users@lists.sourceforge.net> Liquidsoap 1.0.1 June 25, 2012 LIQUIDSOAP(1)
All times are GMT -4. The time now is 08:43 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy