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Shell Programming and Scripting

replace a character with another character

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# 1  
Old 05-19-2008
Java replace a character with another character
hi
i have a string var=abc.ghi.jkl.mno.pqr
now i need to replace .(dot) with _(underscore)
the result should be like "arresult=abc_def_ghi_jkl_mno_pqr"

Please help
# 2  
Old 05-19-2008
try this
echo $var | sed 's/\./_/g' -> will print the variable

x=`echo $var | sed 's/\./_/g'` will get the output into x variable.
# 3  
Old 05-19-2008
Quote:
Originally Posted by satish@123
hi
i have a string var=abc.ghi.jkl.mno.pqr
now i need to replace .(dot) with _(underscore)
the result should be like "arresult=abc_def_ghi_jkl_mno_pqr"

Please help
echo $var|sed 's/\./\_/g'
# 4  
Old 05-19-2008
Code:
echo 'abc.ghi.jkl.mno.pqr' | tr '.' '_'

# 5  
Old 05-19-2008
If you are using bash or ksh93
Code:
$ var=abc.ghi.jkl.mno.pqr
$ result=${var//./_}
$ echo $result
abc_ghi_jkl_mno_pqr

# 6  
Old 05-13-2009
hi,

I want to replace _ with \_.
I am using below command.
echo old_path | sed 's/\_/\\_/g'

It is working fine.
but when I use that in script file like below.
$oldpath1=`echo old_path | sed 's/\_/\\_/g' > 1`;
$ echo oldpath1
oldpath1

It is not repacing.
Any suggestions.

Thanx in advance.
# 7  
Old 05-13-2009
oh sorry.
I mean to say.
$ echo $oldpath1

oldpath1 is null.
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