SED Substitution

subhendu81 · #1 (**permalink**) 11-14-2008

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

labrazil · #2 (**permalink**) 11-14-2008

I"m not as good as some of the guys here but try this

Code:

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

dennis.jacob · #3 (**permalink**) 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/

subhendu81 · #4 (**permalink**) 11-14-2008

hi guys,

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

thanks in advance.

subhendu

labrazil · #5 (**permalink**) 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.

paresh n doshi · #6 (**permalink**) 11-14-2008

Is this a homework or sth?

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

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