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[Solved] Removing control-m characters from shell script

 
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# 1  
Old 11-11-2012
[Solved] Removing control-m characters from shell script
Hi All,

I need to remove control m character from a file.

Steps which i am doing in shell script are:
1) We are comparing the header of the file to the database table header

Here the file header has control-m characters. How do i remove it.
Please help. Below are the steps i am using, but is not working out.

Code:
v_header=`sed 1q $v_sftphomedir/$v_finalsourcefile`
echo $v_header |tr -d '\015' > v_avilableheader

or
Code:
sed 's/^M//g' $v_header


Please help.
Last edited by Scott; 11-11-2012 at 01:10 PM.. Reason: Code tags
# 2  
Old 11-11-2012
dos2unix , unix2dos
Quote:
Originally Posted by abhi_123
Hi All,

I need to remove control m character from a file.

Steps which i am doing in shell script are:
1) We are comparing the header of the file to the database table header

Here the file header has control-m characters. How do i remove it.
Please help. Below are the steps i am using, but is not working out.

v_header=`sed 1q $v_sftphomedir/$v_finalsourcefile`
echo $v_header |tr -d '\015' > v_avilableheader
or
sed 's/^M//g' $v_header Smilie


Please help.
Hello,

If you copy a file created or modified in Windows or DOS to a Linux/Unix file system, you sometimes find ^M characters at the end of each line.

try to use dos2unix / unix2dos.

Regards
Last edited by bdittmar; 11-11-2012 at 12:13 PM.. Reason: Add line
# 3  
Old 11-11-2012
Try:-
Code:
 
sed 's/'"$(printf '\015')"'//g' input_file > output_file

# 4  
Old 11-11-2012
is it a generic code to remove control M characters in a sample file

Code:
 
sed 's/'"$(printf '\015')"'//g' input_file > output_file

# 5  
Old 11-11-2012
i just want to replace it in my header variable which has the file header content take form file and not entire file.
Its just a variable in shell script which has the header value and not a filename. how to remove from that variable which is having control-m character.

How do i do this. PLease help.Smilie
# 6  
Old 11-11-2012
Code:
sed 's/^'$v_header''"$(printf '\015')"'*//g' input_file > output_file

Last edited by Yoda; 11-11-2012 at 12:42 PM..
# 7  
Old 11-11-2012
when i do the steps mentioned above i get the below error :
Code:
sed 's/'"$(printf '\015')"'/'$v_header'/g' $v_header > Newheader
Can't open "MEMBER"|"MEMBERDESC"|"LEVEL0"|"LEVEL1"|"LEVEL1DESC"|"

Smilie
Last edited by Scott; 11-11-2012 at 01:11 PM.. Reason: Code tags
 
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