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How to remove ^M from the EOL?

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Operating Systems AIX How to remove ^M from the EOL?
# 1  
Old 04-02-2013
How to remove ^M from the EOL?
The only way I know of is manually as follows:
To remove for example ^M from a file:
- vi the file name that has ^M at the end of each line.
- Hit <Esc>
- Type :g/
- Hold the CNTRL key and press V and M then release the CNTRL key At the buttom you should see this by now: :g/^M
- Then type /s///g at the end of the line. You should see this g/^M/s///g now.
- Hit <enter>. All ^M at the end of each line should go away by now.
- Save the file and exit.

Good luck
# 2  
Old 04-02-2013
That ^M control-M is a CR (carriage return).

As per ASCII table the octal code for CR is 015. So we can remove it using below sed:
Code:
sed 's/'"$(printf '\015')"'$//g' inputfile > outputfile

# 3  
Old 04-02-2013
Knowing that AIX is a bit tight when it comes to generic and versatile tools, I still would like to propose any of recode, iconv, and dos2unix, which all can do more than just deleting the ^M at EOL. tr would help as well.
# 4  
Old 04-02-2013
tr should be present on any UNIX, while dos2unix is rare.

Code:
tr -d '\r' < inputfile > outputfile

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