Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: slashes in a bash shell
Top Forums Shell Programming and Scripting slashes in a bash shell Post 10568 by Perderabo on Friday 16th of November 2001 10:35:30 AM
Old 11-16-2001
Backslash is special to the shell. It quotes the next character. For example:
echo ;
will not work because the shell sees the semicolon as a separator and will not pass it to the echo command. So to echo a semicolon we need to do:
echo \;
But what if we wanted to echo a backslash? We then we need to do this:
echo \\

So your four backslashes are needed just to deliver two backslashes to the sed program.

But sed also uses the backslash specially. And so if you really want sed to use a backslash as an ordinary character, you need to feed sed a double backslash as well.

If it makes you feel any better, 8 backslashes is no record.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

UNIX and forward slashes

Hey, This is probably going to sound like an immensely stupid and dull question, but can someone please tell me whether the forward slash on the web address (http://) signifies that it is running on UNIX? hanks (1 Reply)
Discussion started by: steverocliffe
1 Replies

2. UNIX for Dummies Questions & Answers

Password slashes.

Hi everyone! :) I've been asked to write an article breaking down the basics of UNIX password information etc., and I've come across something in which I cannot find a definition for within Google. Very simply, can anyone tell me what the difference is between a standard UNIX password, and... (4 Replies)
Discussion started by: hellz
4 Replies

3. UNIX for Dummies Questions & Answers

dots and slashes

when I execute a command in like "run.sh," I can run it two ways: ./run.sh or . run.sh What is the difference? (1 Reply)
Discussion started by: DarkLord
1 Replies

4. Homework & Coursework Questions

Date comparison with 'string date having slashes and time zone' in Bash only

1. The problem statement, all variables and given/known data: I have standard web server log file. It contains different columns (like IP address, request result code, request type etc) including a date column with the format . I have developed a log analysis command line utility that displays... (1 Reply)
Discussion started by: TariqYousaf
1 Replies

5. Shell Programming and Scripting

Problem in Concatination of string in bash scripts containing back slashes.

My script is as follows: #!/bin/bash STR1="test" echo $STR1 STR2="/bldtmp/"$STR1 echo $STR2 STR3=$STR2'/tmp' echo $STR3 output i am geting ---------------- test /bldtmp/test /tmptmp/test but my need is: ------------------ test /bldtmp/test (1 Reply)
Discussion started by: dchoudhury
1 Replies

6. Cybersecurity

Server is ignoring slashes

When I try to access my website's Administrator page (mysite.com/administrator), I'm redirected to (mysite.comadministrator), as if the slash was removed from the URL The funny thing is that I can access it if I enter 2 slashes (mysite.com//administrator) Any ideas of what might be causing it? (4 Replies)
Discussion started by: rlopes
4 Replies

7. Shell Programming and Scripting

Need to extract the data between slashes

I have got the following contents and please can you advise me on how to extract the following data that appears between the very first slashes. Thanks i.e 576 , 10000, 1299 3/576/GPP///////NONE/0 50/10000/GPP///D4////GPP/0 234/1299/GPP///////NONE/0 (3 Replies)
Discussion started by: Sudhakar333
3 Replies

8. Programming

Print slashes using C

I want to print 4052 slashes using this C program. #include <stdio.h> void main() { int i; for (i=0; i<4052; i++) printf ("/"); } When i compile this via gcc am getting this error : http://gyazo.com/e0403e4789575d181d1695f9db3e6d6e.png Can anyone point out what am doing wrong? (15 Replies)
Discussion started by: vish6251
15 Replies

9. Shell Programming and Scripting

Different behavior between bash shell and bash script for cmd

So I'm trying to pass certain json elements as env vars and use them later on in a script. Sample json: JSON='{ "Element1": "file-123456", "Element2": "Name, of, company written in, a very weird way", "Element3": "path/to/some/file.txt", }' (part of the) script: for s... (5 Replies)
Discussion started by: da1
5 Replies

10. UNIX for Beginners Questions & Answers

In Bash shell - the ps -ef shows only the /bin/bash but the script name is not displayed

In Bash shell - the ps -ef shows only the /bin/bash but the script name is not displayed ? Is there any way to get the script names for the process command ? --- Post updated at 08:39 AM --- in KSH (Korn Shell), my command output shows the script names but when run in the Bash Shell... (3 Replies)
Discussion started by: i4ismail
3 Replies

LEARN ABOUT CENTOS

echo

ECHO(1) 							   User Commands							   ECHO(1)

NAME

       echo - display a line of text

SYNOPSIS

       echo [SHORT-OPTION]... [STRING]...
       echo LONG-OPTION

DESCRIPTION

       Echo the STRING(s) to standard output.

       -n     do not output the trailing newline

       -e     enable interpretation of backslash escapes

       -E     disable interpretation of backslash escapes (default)

       --help display this help and exit

       --version
	      output version information and exit

       If -e is in effect, the following sequences are recognized:

       \     backslash

       a     alert (BEL)

            backspace

       c     produce no further output

       e     escape

       f     form feed

       
     new line

       
     carriage return

       	     horizontal tab

       v     vertical tab

       NNN  byte with octal value NNN (1 to 3 digits)

       xHH   byte with hexadecimal value HH (1 to 2 digits)

       NOTE: your shell may have its own version of echo, which usually supersedes the version described here.	Please refer to your shell's docu-
       mentation for details about the options it supports.

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report echo translation bugs to <http://translationproject.org/team/>

AUTHOR

       Written by Brian Fox and Chet Ramey.

COPYRIGHT

       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The full documentation for echo is maintained as a Texinfo manual.  If the info and echo programs are properly installed at your site,  the
       command

	      info coreutils 'echo invocation'

       should give you access to the complete manual.

GNU coreutils 8.22						     June 2014								   ECHO(1)
All times are GMT -4. The time now is 11:28 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy