Shell Programming and Scripting

the follwing is the script I used to replace directory name in a file. ( I used b-shell)

fname=test1
echo "input original directory"
read indir
echo "input new directory"
read newdir
sed -e 's/'$indir'/'$newdir'/g' $fname > temp

if $indir and $newdir don't include any special character, just string including letter and number only, it works. otherwise, there is error information showed up.

for example, when being asked to input indir and new dir, I input "sin04b\/cp06" and "sin05b\/cp05", the error information is:
sed: 0602-404 Function s/sin04b/cp06/sin05b/cp05/g cannot be parsed.

if I input "sed -d 's/sin04b\/cp06/sin05\/cp05/g' test1 > temp" in command line, it works. I have no idea why it doesn't work in script but works in command line.

Thanks a lot.

Try...

Code:

sed -e "s!$indir!$newdir!g" $fname > temp

it does the job.

Ygor?

How does this work? are the "!" replacing "/"?

I was getting the same errors as the poster, replaced "/" with "!" and now my sed script is working as needed.

Thanks!

This truly is a helpful Forum!

From info sed

Code:

The `s' Command
===============

   The syntax of the `s' (as in substitute) command is
`s/REGEXP/REPLACEMENT/FLAGS'.  The `/' characters may be uniformly
replaced by any other single character within any given `s' command.
The `/' character (or whatever other character is used in its stead)
can appear in the REGEXP or REPLACEMENT only if it is preceded by a `\'
character.

I think this is a privilege for the users of GNU sed. Not sure about the other flavours.

Vino

Pls help for me!

I need this text change

example:

FFFFFF00,852813FE
FFFFFF01,251D2829
FFFFFF02,BDB8A846
FFFFFF03,3D089F7C

after sed:

FFFFFF00,85,28,13,FE
FFFFFF01,25,1D,28,29
FFFFFF02,BD,B8,A8,46
FFFFFF03,3D,08,9F,7C

sed 's/\(.*\),\(..\)\(..\)\(..\)\(..\)/\1,\2,\3,\4,\5/' input_file