Process alternate lines in awk/sed/perl Post: 302832429

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

alternate lines

Hi, I'm new to Unix. I want to read the all the lines from a text file and write the alternate lines into another file. Please give me a shell script solution. file1 ----- one two three four five six seven newfile(it should contain the alternate lines from the file1) ------- one...

2. Shell Programming and Scripting

Command to remove duplicate lines with perl,sed,awk

Input: hello hello hello hello monkey donkey hello hello drink dance drink Output should be: hello hello monkey donkey drink dance

3. Shell Programming and Scripting

Sed/awk to delete single lines that aren't touching other lines

Hello, I'm trying to figure out how to use sed or awk to delete single lines in a file. By single, I mean lines that are not touching any other lines (just one line with white space above and below). Example: one two three four five six seven eight I want it to look like:

4. Shell Programming and Scripting

Delete Lines : after pattern1 and between pattern2 and pattern3 using awk/sed/perl

Hi I need to delete lines from a file which are after pattern1 and between pattern 2 and patter3, as below: aaaaaaaa bbbbbbbb pattern1 cdededed ddededed pattern2 fefefefe <-----Delete this line efefefef <-----Delete this line pattern3 adsffdsd huaserew Please can you suggest...

5. Shell Programming and Scripting

Summing over specific lines and replacing the lines with the sum using sed, awk

Hi friends, This is sed & awk type question. I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example ###start of input text file #### abc def ghi 1 2 3 4 kjld random...

6. Programming

Perl : joining alternate lines

Hi, I need to join every alternate line in a file for eg:input file $ cat abc abc def ghi jkloutput abc def ghi jklcode i wrote for this $ cat add_line.pl #!/usr/bin/perl -w my $count=1; #my $line=undef; my @mem_line; my $i=0; my $x=0;

7. Shell Programming and Scripting

Sed/awk/perl command to replace pattern in multiple lines

Hi I know sed and awk has options to give range of line numbers, but I need to replace pattern in specific lines Something like sed -e '1s,14s,26s/pattern/new pattern/' file name Can somebody help me in this.... I am fine with see/awk/perl Thank you in advance

8. Shell Programming and Scripting

Using sed, awk or perl to remove substring of all lines except the first

Greetings All, I would like to find all occurences of a pattern and delete a substring from the all matching lines EXCEPT the first. For example: 1234::group:user1,user2,user3,blah1,blah2,blah3 2222::othergroup:user9,user8 4444::othergroup2:user3,blah,blah,user1 1234::group3:user5,user1 ...

9. Shell Programming and Scripting

Replacing lines matching a multi-line pattern (sed/perl/awk)

Dear Unix Forums, I am hoping you can help me with a pattern matching problem. What am I trying to do? I want to replace multiple lines of a text file (that match a multi-line pattern) with a single line of text. These patterns can span several lines and do not always have the same number of...

10. Shell Programming and Scripting

Sed/awk/perl substitution with multiple lines

OSX I have been grinding my teeth on a portion of code. I am building a bash script that edits a html email template. In the template, I have place holders for SED (or whatever program is appropriate) to use as anchors for find and replace, with user defined corresponding html code. The HTML code...

LEARN ABOUT DEBIAN

pyp

PYP(1)							      General Commands Manual							    PYP(1)

NAME

       pyp - The Pyed Piper: A Modern Python Alternative to awk, sed and Other Unix Text Manipulation Utilities

SYNOPSIS

       pyp [options] files ...

DESCRIPTION

       pyp,  the  Pyed Piper, is a command line tool for text manipulation. It is similar to awk and sed in functionality, but its subcommands are
       Python based, and thus more familiar to many programmers.

       It can operate both on a per-line base and on the complete input stream.  Different features can be pipelined in a single command by  using
       the pipe character familiar from shell commands.

       pyp  backs  up  its  input  for reruns with modified commands, and can save commands as macros. On the downside, the rerun feature makes it
       unsuitable for continuous pipe operation.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.	For a complete description, use --manual.

       -h, --help
	      Show this help message and exit.

       -m, --manual
	      Prints out extended help.

       -l, --macro_list
	      Lists all available macros.

       -s MACRO_SAVE_NAME, --macro_save=MACRO_SAVE_NAME
	      Saves current command as macro. use "#" for adding
	      comments	EXAMPLE:
	      pyp -s "great_macro # prints first letter" "p[1]".

       -f MACRO_FIND_NAME, --macro_find=MACRO_FIND_NAME
	      Searches for macros with keyword or user name.

       -d MACRO_DELETE_NAME, --macro_delete=MACRO_DELETE_NAME
	      Deletes specified public macro.

       -g, --macro_group
	      Specify group macros for save and delete; default is user.

       -t TEXT_FILE, --text_file=TEXT_FILE
	      Specify text file to load. For advanced users,
	      you should typically cat a file into pyp.

       -x, --execute
	      Execute all commands.

       -c, --turn_off_color
	      Prints raw, uncolored output.

       -u, --unmodified_config
	      Prints out generic PypCustom.py config file.

       -b BLANK_INPUTS, --blank_inputs=BLANK_INPUTS
	      Generate this number of blank input lines; useful for
	      generating numbered lists with variable 'n'.

       -n, --no_input
	      Use with command that generates output with no input;
	      same as --dummy_input 1.

       -k, --keep_false
	      Print blank lines for lines that test as False.
	      default is to filter out False lines from the output.

       -r, --rerun
	      Rerun based on automatically cached data from the last run.
	      Use this after executing "pyp", pasting input into the shell,
	      and hitting CTRL-D.

SEE ALSO

       awk(1), grep(1), sed(1).

AUTHOR

       pyp was written by Toby Rosen <tobyrosen@gmail.com>.

       This manual page was written by Khalid El Fathi <khalid@elfathi.fr>, for the Debian project (and may be used by others).

								  March 19, 2012							    PYP(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

alternate lines

Discussion started by: pstanand

2. Shell Programming and Scripting

Command to remove duplicate lines with perl,sed,awk

Discussion started by: cola

3. Shell Programming and Scripting

Sed/awk to delete single lines that aren't touching other lines

Discussion started by: slimjbe

4. Shell Programming and Scripting

Delete Lines : after pattern1 and between pattern2 and pattern3 using awk/sed/perl

Discussion started by: vk2012

5. Shell Programming and Scripting

Summing over specific lines and replacing the lines with the sum using sed, awk

Discussion started by: kaaliakahn

6. Programming

Perl : joining alternate lines

Discussion started by: sam05121988

7. Shell Programming and Scripting

Sed/awk/perl command to replace pattern in multiple lines

Discussion started by: dani777