Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

SED: Replacing $1 with $2 escape problem

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting SED: Replacing $1 with $2 escape problem
# 8  
Old 11-28-2008
Thanks Christoph.

The problem is, the string to be replaced will be given by a user on a webpage which allows the user total freedom.

This is then used as input to sed, which replaces a line in a word document. The user expects any character on the keyboard they enter, to be displayed flawlessly in the word doc, so its not a case of choosing characters which may not be used, as any character can be used.

So if I choose / as the delimitor, and escape that out manually, your saying I should be ok to go?

Its strange how & doesn't cause you troubles and it does for me, I will investigate this further, but I don't think printf's escaping, will escape all sed specials for me.
Last edited by mark007; 11-28-2008 at 07:58 AM..
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to escape % with sed?

Hello, I am running ubuntu 16.04 I searched "how to replace dot by % using sed" but no luck. file My.Name.Is.Earl Expected output My%Name%Is%Earl I tried: sed -i "s|.||g" file sed -i "s|.|{%}|g" file sed -i "s|.|\%|g" file I'd appreciate your help Thank you Boris (6 Replies)
Discussion started by: baris35
6 Replies

2. Shell Programming and Scripting

Perl/sed Escape Syntax Problem . . .

Greetings! I've run into this before; and am having a spot of trouble trying to figure out the way that Perl would prefer the following example syntax to be formed:#!/usr/bin/perl use strict; use warnings; use diagnostics; `sed -i 's/Hi Mom!\|Hi Dad!/Bye Everyone!/I' ./test.txt`;Perl... (5 Replies)
Discussion started by: LinQ
5 Replies

3. Shell Programming and Scripting

sed - with escape character

i have string as below str=".<date>" in which i need to replace < with /< , when i tried with sed , got the output. --> echo $str | sed 's/</\\</g' .\<date> when i tried to assign it to a variable , i am not getting the same --> a=`echo $str | sed 's/</\\</g'` ; echo $a... (4 Replies)
Discussion started by: expert
4 Replies

4. Shell Programming and Scripting

Problem with using a sed to add escape character \ before $ and ' symbols

Hi all, I've got a problem with sed. Want to use it to add escape character \ before $ and ' symbols so condition='1'$some will become condition=\'1\'\$some echo "condition='1'$some" | sed 's/\($\)/\\\1/g' is not working properly. Can somebody help me with this please? Regards,... (7 Replies)
Discussion started by: johny_be_good
7 Replies

5. Shell Programming and Scripting

problem in replacing asterisk in sed

Hi all, Sed is the one which always trobules me :( here is my input : *** it industry need to be evolved *** in the world and hope so *** to be dream the output i am expecting is : *** it industry need to be evolved *** in the world and hope so *** to be dream ... (4 Replies)
Discussion started by: panyam
4 Replies

6. Shell Programming and Scripting

problem with sed while replacing a string with another

Hi, I have a line something like this sys,systematic,system I want to replace only the word system with HI I used sed for this as below echo sys,systematic,system | sed 's/system/HI/' but I got output as sys,HIatic,system I wanted output as sys,systematic,HI Please tell me... (9 Replies)
Discussion started by: friendyboy
9 Replies

7. Shell Programming and Scripting

Escape character in sed

Hello experts I am trying to write a shell script which will add ' ' to a unix variable and then pass it to oracle for inserting to a table. I am running the script as root and I have to do a su -c . The problem is the character ' is not recognised inside sed even after adding escape... (1 Reply)
Discussion started by: pvedaa
1 Replies

8. UNIX for Dummies Questions & Answers

sed problem replacing long strings

Hi all, I have a script which uses sed to replace one string with another. The problem is, the string to be matched, and its replacement are coming in as two command line arguments $1 and $2 $1 and $2 can be absolutely anything, but both should be treated purely as strings. My sed command... (1 Reply)
Discussion started by: mark007
1 Replies

9. Shell Programming and Scripting

Escape character - sed

Hi All, How do i write in sed for the 6th and 7th field of etc/passwd file as it involves "/" character? Does mine below is correct? It's incomplete script as i need help with syntax as i always getting may errors :( Example of etc/passwd file: blah:x:1055:600:blah... (6 Replies)
Discussion started by: c00kie88
6 Replies

10. UNIX for Dummies Questions & Answers

possible to escape the \ character in sed?

is it possible to escape the \ character in sed? right now I'm trying to replace all occurances of \ with \\ sed \"s|test|test_replacement|g\" file1 > output; #this works fine sed \"s|\\|\\\|g\" file1 > output; #this generates the following error: sed: -e expression #1, char 17:... (1 Reply)
Discussion started by: gammaman
1 Replies
Login or Register to Ask a Question

LEARN ABOUT DEBIAN

rscript

Rscript(1)								FSF								Rscript(1)

NAME

       Rscript - front end for scripting with R

SYNOPSIS

       Rscript [--options] [-e expr] file [args]

DESCRIPTION

       A binary front-end to R, for use in scripting applications.

       expr   An optional expression to be evaluated, used in place of expr.

       file   Input file of R expressions

       args   Optional further arguments to be processed by commandArgs in the R interpreter.

OPTIONS

       --options accepted are

       --help Print usage and exit

       --version
	      Print version and exit

       --verbose
	      Print information on progress

       --default-packages=list
	      Where 'list' is a comma-separated set of package names, or 'NULL'

       and also options to R (in addition to --slave --no-restore), such as

       --save Do save workspace at the end of the session

       --no-environ
	      Don't read the site and user environment files

       --no-site-file
	      Don't read the site-wide Rprofile

       --no-init-file
	      Don't read the user R profile

       --restore
	      Do restore previously saved objects at startup

       --vanilla
	      Combine --no-save, --no-restore, --no-site-file --no-init-file and --no-environ

SEE ALSO

       R(1)

R scripting							    April 2007								Rscript(1)