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Full Discussion: how to print backslah using echo
Top Forums Shell Programming and Scripting how to print backslah using echo Post 302113994 by mani_um on Thursday 12th of April 2007 12:45:56 AM
Old 04-12-2007
how to print backslah using echo
how to print 3 backslah using Unix AIX,
i have try in my fedora and AIX,both give dirrent output for same echo statment
test.sh
Code:
sed -e 's/\(["`]\)/\\\1/g' -e 's/\$?/\\$?/g' -e 's/\$#/\\$#/g' -e 's/^/echo "/g' -e 's/$/ "/g' xMNBDF070 > xMNBDF070_test

xMNBDF070
Code:
sed -e "s/'/\\\'/g" -e 's/\([();*|>]\)/\\\1/g' $SCRIPTSQL/xMNBDF070_Script.sql > $TEMP_PATH/xMNBDF070_Script.sql.TMP

letsay,
SCRIPTSQL=/home/mani
TEMP_PATH=/home/mani/temp

sh xMNBDF070_test
output
Code:
sed -e "s/'/\\\'/g" -e 's/\([();*|>]\)/\\\1/g' /home/mani/xMNBDF070_Script.sql > /home/mani/temp/xMNBDF070_Script.sql.TMP

how to alter test.sh to print above line in xMNBDF070
because i get this
Code:
sed -e "s/'/\'/g" -e 's/\([();*|>]\)/\1/g' /home/mani/xMNBDF070_Script.sql > /home/mani/temp/xMNBDF070_Script.sql.TMP

i dunno how many backslah to use because in Unix to get 3 backslah i echo like this
echo "\\\\\\\\\ "

but in linux i use pair backslah
echo "\\\\\\ "

why its diffrent and how to know how many backslach needed
please guide
 

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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)
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