Sponsored Content
Full Discussion: Escape character - sed
Top Forums Shell Programming and Scripting Escape character - sed Post 302244415 by era on Wednesday 8th of October 2008 02:33:11 AM
Old 10-08-2008
You are not copy+pasting correctly, and not reporting back what the error message is. "Still no good" is not a useful diagnostic. But if you carefully use your mouse to copy+paste the commands above, and carefully copy+paste any errors back here, we might be able to help you.

"Unknown option to s" means you have something after (what sed thinks is) the final separator which is not a valid option for s/from/to/gp (here, "g" and "p" are options). In this case, it's simply because you still use slash as the separator, without escaping those slashes which are not separators. Change the separator to %, or escape the slashes as required.

Also, your command is partial; you are missing the "to" part \1$answer\2
 

10 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

Escape character in vi?

I want to replace a string which contains "/" in vi but what is the escape character for forward slash? e.g. I have a text file with the contents below and I want to replace "/Top/Sub/Sub1" with "ABC". /Top/Sub/Sub1 The replace command I am using is ... (4 Replies)
Discussion started by: stevefox
4 Replies

3. Shell Programming and Scripting

Escape character

Hi , I want to change space to ' in my script. I tried doing this, sed 's/ /\'/g' filename but i could not get it. can some one help me please. Thanks, Deepak (4 Replies)
Discussion started by: deepakpv
4 Replies

4. 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

5. Shell Programming and Scripting

perl how to escape (|) character

my @array; my $sepa = "|"; print $sepa; open FH, "<100_20091023_2.txt"; while(<FH>){ push @array, split(/\$sepa/, $_); print "@array\n\n"; } I am not able split the line which have | separated (1 Reply)
Discussion started by: pritish.sas
1 Replies

6. Shell Programming and Scripting

awk escape character

ll|awk '{print "INSERT INTO SCHEMA.TABLE_NAME VALUES (`"$9 "`,"$5");" }' INSERT INTO SCHEMA.TABLE_NAME VALUES (``,); INSERT INTO SCHEMA.TABLE_NAME VALUES (`TABLE_PARTITION_Y2010M03D06.dmp`,7923328); INSERT INTO SCHEMA.TABLE_NAME VALUES (`TABLE_PARTITION_Y2010M03D06.log`,1389); But I want ' in... (2 Replies)
Discussion started by: faruque.ahmed
2 Replies

7. 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

8. Shell Programming and Scripting

sed escape character for comment string "/*"

Good afternoon all, I'm hoping my newbie question can help bolster someone's street_cred.sh today. I'm trying to "fingerprint" SQL on its way into the rdbms for a benchmarking process (so I can tie the resource allocation back to the process more precisely). To do this, I'm essentially... (4 Replies)
Discussion started by: toeharp
4 Replies

9. 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

10. Shell Programming and Scripting

Function to add escape character before specified character

Hi , I am looking for a function which will do the following. 1. I have a variable which will hold few special chracter like SPECIAL_CHARS="& ;"2. I have an escape character. ESCAPE_CHAR="\"3. Now when I passed some string in the function it will return the same string but now it will... (8 Replies)
Discussion started by: Anupam_Halder
8 Replies
paste(1)						      General Commands Manual							  paste(1)

Name
       paste - merge file data

Syntax
       paste file1 file2...
       paste -dlist file1 file2...
       paste -s [-dlist] file1 file2...

Description
       In  the	first  two forms, concatenates corresponding lines of the given input files file1, file2, etc.	It treats each file as a column or
       columns of a table and pastes them together horizontally (parallel merging).

       In the last form, the command combines subsequent lines of the input file (serial merging).

       In all cases, lines are glued together with the tab character, or with characters from an optionally specified  list.   Output  is  to  the
       standard output, so it can be used as the start of a pipe, or as a filter, if - is used in place of a file name.

Options
       -       Used in place of any file name, to read a line from the standard input.	(There is no prompting).

       -dlist  Replaces  characters  of  all but last file with nontabs characters (default tab).  One or more characters immediately following -d
	       replace the default tab as the line concatenation character.  The list is used circularly, i. e. when exhausted, it is reused.	In
	       parallel  merging  (i. e. no -s option), the lines from the last file are always terminated with a new-line character, not from the
	       list.  The list may contain the special escape sequences: 
 (new-line), 	 (tab), \ (backslash), and  (empty string, not a null
	       character).   Quoting  may  be  necessary,  if characters have special meaning to the shell (for example, to get one backslash, use
	       -d"\\" ).
	       Without this option, the new-line characters of each but the last file (or last line in case of the -s option) are  replaced  by  a
	       tab character.  This option allows replacing the tab character by one or more alternate characters (see below).

       -s      Merges  subsequent  lines  rather  than	one  from  each input file.  Use tab for concatenation, unless a list is specified with -d
	       option.	Regardless of the list, the very last character of the file is forced to be a new-line.

Examples
       ls | paste -d" " -
       list directory in one column
       ls | paste - - - -
       list directory in four columns
       paste -s -d"	
" file
       combine pairs of lines into lines

Diagnostics
       line too long
		 Output lines are restricted to 511 characters.

       too many files
		 Except for -s option, no more than 12 input files may be specified.

See Also
       cut(1), grep(1), pr(1)

																	  paste(1)
All times are GMT -4. The time now is 05:09 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy