Using SED to get n chars after given value from file Post: 302152003

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Extracting the last 3 chars from a string using sed

Hi. Can I extract the last 3 characters from a given string using sed ? Why the following doesn't work (it prints the full string) : echo "abcd" | sed '/\.\.\.$/p' doesn't work ? output: abcd Thanks in advance, 435 Gavea.

2. Shell Programming and Scripting

Replace Junk chars (Sed)

I know this has been asked previously on this forum...But I think I have a different scenario to present. I ahve a file tht looks like this (note:there are control Z and other chars tht are not visible on line with anme bowers) BB7118450 6004718 BIANCALANA =HEI BZ5842819 ...

3. Shell Programming and Scripting

sed to extract first two uppercase chars in targeted lines

Hello, I have a file temp.txt: ------------------------- HELLO WORLD This is a temp file. TENCHARSHEre no beginning UPPERCHARS HI There ------------------------- What is a sed egrep command that will target lines that begin with 3-10 uppercase chars, and output the first 2 chars?...

4. Shell Programming and Scripting

sed - how to insert chars into a line

Hi I'm new to sed, and need to add characters into a specific location of a file, the fileds are tab seperated. text <tab> <tab> text <tab> text EOL I need to add more characters to the line to look like this: text <tab> <tab> newtext <tab> text <tab> text EOL Any ideas?

5. Shell Programming and Scripting

Special chars in sed variable

Hi, For years ive been using this script to do mass search & replaces on our websites. Its worked with all sorts of spaces, quotes, html or whatever with a little adjusting here and there. But I just cant get this pattern to work: #!/bin/bash OLDURL="document.write('<script...

6. Shell Programming and Scripting

sed discard chars after last _

Hi, I'd get fields like unix_linux_form_yyyyddmmhhmi.file.txt shell_programming_and_scripting.txt so on... and want them as below unix_linux_form shell_programming_and I could remove everything after a '.' as below echo $field | sed 's/\..*//' but how to remove...

7. Shell Programming and Scripting

AWK/SED: handle max chars in a line

Hi all, I hope you guys can help me. I prefer SED/AWK solutions if possible. For my shame it didn't work for me :o ISSUE: :wall: 1\3 1/$4\@7\ 1234567890123456789\ 1234567890123456789,\ 1234567890123456789\ 123456789012 12345 1234567890123456789\ 1234567890123456789,\ 1234...

8. Shell Programming and Scripting

Remove duplicate chars and sort string [SED]

Hi, INPUT: DCBADD OUTPUT: ABCD The SED script should alphabetically sort the chars in the string and remove the duplicate chars.

9. UNIX for Dummies Questions & Answers

Grep or sed to search, replace/insert chars!

HI All Im trying to come up with an approach to finding a string, using a portion of that string to insert it on lines starting with the value "GOTO" appending to end of line after removing PT's ( See example below! ) EXAMPLE: 1. I would like to search for the line that starts with "TLAXIS/"...

10. Shell Programming and Scripting

sed - print only the chars that match a given set in a string

For a given string that may contain any ASCII chars, i.e. that matches .*, find and print only the chars that are in a given subset. The string could also have numbers, uppercase, special chars such as ~!@#$%^&*(){}\", whatever a user could type in without going esoteric For simplicity take...

LEARN ABOUT FREEBSD

uniq

UNIQ(1) 						    BSD General Commands Manual 						   UNIQ(1)

NAME

     uniq -- report or filter out repeated lines in a file

SYNOPSIS

     uniq [-c | -d | -u] [-i] [-f num] [-s chars] [input_file [output_file]]

DESCRIPTION

     The uniq utility reads the specified input_file comparing adjacent lines, and writes a copy of each unique input line to the output_file.	If
     input_file is a single dash ('-') or absent, the standard input is read.  If output_file is absent, standard output is used for output.  The
     second and succeeding copies of identical adjacent input lines are not written.  Repeated lines in the input will not be detected if they are
     not adjacent, so it may be necessary to sort the files first.

     The following options are available:

     -c      Precede each output line with the count of the number of times the line occurred in the input, followed by a single space.

     -d      Only output lines that are repeated in the input.

     -f num  Ignore the first num fields in each input line when doing comparisons.  A field is a string of non-blank characters separated from
	     adjacent fields by blanks.  Field numbers are one based, i.e., the first field is field one.

     -s chars
	     Ignore the first chars characters in each input line when doing comparisons.  If specified in conjunction with the -f option, the
	     first chars characters after the first num fields will be ignored.  Character numbers are one based, i.e., the first character is
	     character one.

     -u      Only output lines that are not repeated in the input.

     -i      Case insensitive comparison of lines.

ENVIRONMENT

     The LANG, LC_ALL, LC_COLLATE and LC_CTYPE environment variables affect the execution of uniq as described in environ(7).

EXIT STATUS

     The uniq utility exits 0 on success, and >0 if an error occurs.

COMPATIBILITY

     The historic +number and -number options have been deprecated but are still supported in this implementation.

SEE ALSO

     sort(1)

STANDARDS

     The uniq utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002.

HISTORY

     A uniq command appeared in Version 3 AT&T UNIX.

BSD
								 December 17, 2009							       BSD

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Extracting the last 3 chars from a string using sed

Discussion started by: 435 Gavea

2. Shell Programming and Scripting

Replace Junk chars (Sed)

Discussion started by: alfredo123

3. Shell Programming and Scripting

sed to extract first two uppercase chars in targeted lines

Discussion started by: str8danked

4. Shell Programming and Scripting

sed - how to insert chars into a line

Discussion started by: tangentviper