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Appending error

 
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# 1  
Old 03-05-2010
Appending error
Hi All,

I just want to append the value in variable at the end of the file.

Code:
var=1234
sed -e "$a $var" file1 > file 2.

But I get this error
Code:
sed: -e expression #1, char 4: unknown command: `1'

Kindly let m know how can I do that...
Last edited by Scott; 03-05-2010 at 02:11 AM.. Reason: Please use code tags
# 2  
Old 03-05-2010
If you want to append the value of variable,you can use the echo command.I don't know why you're using?Whether you want the values of variables a and var to file.

Then try this,

Code:
echo "$a $var" > file

# 3  
Old 03-05-2010
I used this because I wanted to append the value of var at the end of the file. it reads data from file1 and appends var at the end and save it in file 2

var=1234
sed -e "$a $var" file1 > file2
# 4  
Old 03-05-2010
'>' will simple rewrite . use '>>' to append.

Code:
echo "$var1 $var2 $var3" >> file

# 5  
Old 03-05-2010
Try this,

Code:
sed  -e "${a} ${var}" file1 > file2

# 6  
Old 03-05-2010
No NILA it didn work

If I use this sed -e '$a $var' file1 > file2 it does work but it dosnt read var as a variable rather it reads it as text and place text "$var" at the end of the file.

---------- Post updated at 05:21 AM ---------- Previous update was at 04:50 AM ----------

Thnxx karthigayan

echo "$var1 $var2 $var3" >> file places data right where I wanted it to be
 
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