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Shell Programming and Scripting

SED Substitution

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# 1  
Old 11-14-2008
SED Substitution
Hi guys,

Can u please help me to replace (-) with (/) in a file containing no of records using "sed " command in unix.

thanks in advance.

subhendu
# 2  
Old 11-14-2008
I"m not as good as some of the guys here but try this

Code:
sed 's/-/\//' filename > newfile

# 3  
Old 11-14-2008
Try also with tr ,perl and awk:

Code:
[/tshome/tf01 ]>x="ashdkhsa-sdasldhals-sadakjsh-"
[/tshome/tf01 ]>echo $x | tr "-" "/"
ashdkhsa/sdasldhals/sadakjsh/

or,
Code:
perl -ne 's/-/\//;print;' filename

or,

Code:
[/tshome/tf01 ]>echo $x | awk '{gsub(/-/,"/",$0); print; }'
ashdkhsa/sdasldhals/sadakjsh/

# 4  
Old 11-14-2008
hi guys,

how can i convert multiple spaces to single space using sed in unix.

thanks in advance.

subhendu
# 5  
Old 11-14-2008
how many spaces are you talking about?
you can use any one of the methods above.

I would try this:

Code:
sed 's/          / /' filename

in addition, read through sed manual

Code:
man sed

they have lots of information and examples.
# 6  
Old 11-14-2008
Is this a homework or sth?

try this,
tr -s " " < filename > outfile
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