Sponsored Content
Full Discussion: Help needed on sed command
Top Forums UNIX for Dummies Questions & Answers Help needed on sed command Post 302316151 by 12345 on Thursday 14th of May 2009 08:05:30 AM
Old 05-14-2009
Help needed on sed command

I got the output as the way I wanted it.

Output:
1 John Smith Chicago
2 Mary Smith New York

Output filename here is smith,but now I want the ouput to be redirected to a different file.

TIA
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

help needed for sed command

Hi all, I need some help with sed command. I'm trying to move all the files with a modified date within 12:00 - 13:00. What i'm doing here is to do is ls -lt | grep 'Jun 22 12:' > list.txt to get all file names within that period. However how do i strip off -rw-r--r-- 1 enfoot adi... (2 Replies)
Discussion started by: manualvin
2 Replies

2. Shell Programming and Scripting

Help needed in processing multiple variables in a single sed command.

Is it possible to process multiple variables in a single sed command? I have the following ksh with three variables and I want to search for all variables which start with "var" inside input.txt. I tired "$var$" but it just prints out everyting in input.txt and does not work. $ more test.ksh... (5 Replies)
Discussion started by: stevefox
5 Replies

3. Shell Programming and Scripting

sed command explanation needed

Hi, Could you please explain me the below statement -- phrase wise. sed -e :a -e '$q;N;'$cnt',$D;ba' abc.txt > xyz.txt if suppose $cnt contains value: 10 it copies last 9 lines of abc.txt to xyz.txt why it is copying last 9 rather than 10. and also what is ba and $D over there in... (4 Replies)
Discussion started by: subbukns
4 Replies

4. Shell Programming and Scripting

SED command ---------help needed

Hi all I am new babie to shell script, so please advise me n help me . suppose i have a string "abacus sabre", i need to replace occurences 'ab' with 'cd' and i need to store this result into same string and i need to return this result from script to the calling function, where as the string... (4 Replies)
Discussion started by: veerapureddy
4 Replies

5. Shell Programming and Scripting

flexible sed command needed to handle multiple input types

Hello, I need a smart sed command that can take any of the following two as an input and give below mentioned output. As you can see, I am trying to convert some C code INPUT: struct abc_sample1 { char myString; UINT16 myValue1; ... (2 Replies)
Discussion started by: SiftinDotCom
2 Replies

6. Shell Programming and Scripting

Help needed in sed

I have a requirement in my project to create report from a template file. A sample template file is added below: The report data is stored in a file. A sample data file is added below: Using the above template and data file I want to create a report like this: I have tried to... (1 Reply)
Discussion started by: Alecs
1 Replies

7. Shell Programming and Scripting

Help needed sed command.

I want to execute below command using line number as a variable. sed '5c\ disk = jskdjfdsk' vm.cfg How do i substitute a variable in place of 5 for example i tried substituting sed '$variablec\ disk = jskdjfdsk' vm.cfg and sed '"$variable"c\ disk = jskdjfdsk' vm.cfg) but they... (2 Replies)
Discussion started by: pinga123
2 Replies

8. Shell Programming and Scripting

sed command help needed.

vif = I need to replace "00:16:3E:64:FB:D3" to a new mac address value from below mentioned file. # cat vm.cfg acpi = 1 apic = 1 builder = 'hvm' device_model = '/usr/lib/xen/bin/qemu-dm' disk = kernel = '/usr/lib/xen/boot/hvmloader' memory = '300' name = 'vm_temp' on_crash =... (1 Reply)
Discussion started by: pinga123
1 Replies

9. Shell Programming and Scripting

Help needed - ksh: sed: command garbled:

Hi all, What am I doing wrong here? $ cat test_sed.ksh #!/usr/bin/ksh var="sed -e \'6s/9/6/\' testfile.txt > testfile.txt.2" $var $ ./test_sed.ksh sed: command garbled: \'6s/9/6/\' Thank you! (4 Replies)
Discussion started by: ejianu
4 Replies

10. Shell Programming and Scripting

Help needed with file output awk sed command - please

Hi I have a file that contains lines starting with a particular string plus a Colon: I need to output all these lines but only what comes after the colon Can you pelase assist? Example of lines in the file: com.ubs.f35.cashequities/cashequities: 1 2 ... (5 Replies)
Discussion started by: mnassiri
5 Replies
SED(1)							      General Commands Manual							    SED(1)

NAME
sed - stream editor SYNOPSIS
sed [ -gln ] [ -e script ] [ -f sfile ] [ file ... ] DESCRIPTION
Sed copies the named files (standard input default) to the standard output, edited according to a script of commands. The -f option causes the script to be taken from file sfile; these options accumulate. If there is just one -e option and no -f's, the flag -e may be omitted. The -n option suppresses the default output; -g causes all substitutions to be global, as if suffixed g. The -l option causes sed to flush its output buffer after every newline. A script consists of editing commands, one per line, of the following form: [address [, address] ] function [argument ...] In normal operation sed cyclically copies a line of input into a pattern space (unless there is something left after a command), applies in sequence all commands whose addresses select that pattern space, and at the end of the script copies the pattern space to the standard out- put (except under -n) and deletes the pattern space. An address is either a decimal number that counts input lines cumulatively across files, a that addresses the last line of input, or a con- text address, /regular-expression/, in the style of regexp(7), with the added convention that matches a newline embedded in the pattern space. A command line with no addresses selects every pattern space. A command line with one address selects each pattern space that matches the address. A command line with two addresses selects the inclusive range from the first pattern space that matches the first address through the next pattern space that matches the second. (If the second address is a number less than or equal to the line number first selected, only one line is selected.) Thereafter the process is repeated, looking again for the first address. Editing commands can be applied to non-selected pattern spaces by use of the negation function (below). An argument denoted text consists of one or more lines, all but the last of which end with to hide the newline. Backslashes in text are treated like backslashes in the replacement string of an command, and may be used to protect initial blanks and tabs against the stripping that is done on every script line. An argument denoted rfile or wfile must terminate the command line and must be preceded by exactly one blank. Each wfile is created before processing begins. There can be at most 120 distinct wfile arguments. a text Append. Place text on the output before reading the next input line. b label Branch to the : command bearing the label. If label is empty, branch to the end of the script. c text Change. Delete the pattern space. With 0 or 1 address or at the end of a 2-address range, place text on the output. Start the next cycle. d Delete the pattern space. Start the next cycle. D Delete the initial segment of the pattern space through the first newline. Start the next cycle. g Replace the contents of the pattern space by the contents of the hold space. G Append the contents of the hold space to the pattern space. h Replace the contents of the hold space by the contents of the pattern space. H Append the contents of the pattern space to the hold space. i text Insert. Place text on the standard output. n Copy the pattern space to the standard output. Replace the pattern space with the next line of input. N Append the next line of input to the pattern space with an embedded newline. (The current line number changes.) p Print. Copy the pattern space to the standard output. P Copy the initial segment of the pattern space through the first newline to the standard output. q Quit. Branch to the end of the script. Do not start a new cycle. r rfile Read the contents of rfile. Place them on the output before reading the next input line. s/regular-expression/replacement/flags Substitute the replacement string for instances of the regular-expression in the pattern space. Any character may be used instead of For a fuller description see regexp(7). Flags is zero or more of g Global. Substitute for all non-overlapping instances of the regular expression rather than just the first one. p Print the pattern space if a replacement was made. w wfile Write. Append the pattern space to wfile if a replacement was made. t label Test. Branch to the command bearing the label if any substitutions have been made since the most recent reading of an input line or execution of a If label is empty, branch to the end of the script. w wfile Write. Append the pattern space to wfile. x Exchange the contents of the pattern and hold spaces. y/string1/string2/ Transform. Replace all occurrences of characters in string1 with the corresponding character in string2. The lengths of string1 and string2 must be equal. !function Don't. Apply the function (or group, if function is only to lines not selected by the address(es). : label This command does nothing; it bears a label for b and t commands to branch to. = Place the current line number on the standard output as a line. { Execute the following commands through a matching only when the pattern space is selected. An empty command is ignored. EXAMPLES
sed 10q file Print the first 10 lines of the file. sed '/^$/d' Delete empty lines from standard input. sed 's/UNIX/& system/g' Replace every instance of by sed 's/ *$// drop trailing blanks /^$/d drop empty lines s/ */ replace blanks by newlines /g /^$/d' chapter* Print the files chapter1, chapter2, etc. one word to a line. nroff -ms manuscript | sed ' ${ /^$/p if last line of file is empty, print it } //N if current line is empty, append next line /^ $/D' if two lines are empty, delete the first Delete all but one of each group of empty lines from a formatted manuscript. SOURCE
/src/cmd/sed.c SEE ALSO
ed(1), grep(1), awk(1), lex(1), sam(1), regexp(7) L. E. McMahon, `SED -- A Non-interactive Text Editor', Unix Research System Programmer's Manual, Volume 2. BUGS
If input is from a pipe, buffering may consume characters beyond a line on which a command is executed. SED(1)
All times are GMT -4. The time now is 11:49 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy