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To compare the content of two text files

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# 8  
Old 04-19-2012
Thank you it works fine. Smilie One more thing,
I have a text file as 1.txt with following content,
Code:
q34566788u
w2343556666t

I have used script file sample.sh with content,

Code:
#!/bin/ksh
echo "Enter the Value : "
read value
echo "$value"
sed '1s:\(.\{4\}\)\(.\{3\}\):\1$value:' 1.txt

I used the script file to replace the value 6678 in 1.txt file with the input value on run time which i try to read with variable name value. But its not replacing the value stored on variable instead its replacing $value i.e o/p
Code:
q345$value8u

.
I want the output as
Code:
q345(input value)8u

with input value on runtime in dash places.
Help me out. Smilie

---------- Post updated at 10:37 AM ---------- Previous update was at 10:34 AM ----------

I got the result,
I $value in sed command inside '$value ' it works.
Moderator's Comments:
Mod Comment How to use code tags
Last edited by Scrutinizer; 04-19-2012 at 12:58 PM..
# 9  
Old 04-19-2012
in sed command use a double quote instead a single quote.
# 10  
Old 04-19-2012
Code:
#!/bin/ksh 
mv /int/int1/abc.txt /int/int1/1.txt

echo "Enter the Value : " read value echo "$value" sed '1s:\(.\{4\}\)\(.\{3\}\):\1'$value':' 1.txt


In the above code i try to replace the value in 1.txt file
But its not working. When i use someother file already created in that path, its working.
but when i created the file at run time as in above code its not working.

when i used the file 1.txt its replacing the string and not reading the input value.

Any solutions ????? Smilie
Last edited by Franklin52; 04-20-2012 at 03:13 AM.. Reason: Please use code tags
# 11  
Old 04-19-2012
if you want replace value in the file you need to add
Code:
-i

option to sed. For a correct replacement of the keyword
Code:
$value

you need to change the single quote to double quote:
Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" -i 1.txt

# 12  
Old 04-25-2012
Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" -i 1.txt

The exact command is not working.

but without -i its working as
Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" 1.txt

Thanks

If i want to the output of above command in the same text file
i.e 1.txt means wat is the command?

I tried as
Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" 1.txt > 1.txt

but its not working

i want the result in the same file which is reading file. any help?

---------- Post updated 04-25-12 at 01:47 AM ---------- Previous update was 04-24-12 at 02:07 AM ----------

I am using the following code for replacing the value in the file.

Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" 1.txt

I want the output of above command in the same file i am reading i.e 1.txt.
I tried out as following, its not working
Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" 1.txt > 1.txt

Also tried for
Code:
sed "1s:\(.\{4\}\)\(.\{3\}\):\1$value:" 1.txt >temp.txt; mv temp.txt 1.txt

But No value is replaced.
Any ideas?
Last edited by Franklin52; 04-24-2012 at 04:30 AM.. Reason: Code tags
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