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Use portion of file name as new file name

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# 1  
Old 12-18-2016
Use portion of file name as new file name
Hello, This is my first posting and attempt to create a loop using Unix and awk commands. So far this is what I have:
Code:
 awk -F, 'BEGIN {months ["JAN"]="AP01"; months ["FEB"]="AP02"; months ["MAR"]="AP03"; 
months ["APR"]="AP04"; months ["MAY"]="AP05"; months ["JUN"]="AP06"; 
months ["JUL"]="AP07"; months ["AUG"]="AP08"; months ["SEP"]="AP09"; 
months ["OCT"]="AP10"; months ["NOV"]="AP11"; months ["DEC"]="AP12";}
 {print > "a_STHCSPHFM_ACTUAL_"months[substr($3,0,3)]"20" 
substr($3,5,2)"_RR.txt"}' STAVOSHFM.txt

It basically takes the 3 Characters representing the months and replaces them for AP01, etc. creating new files for each month. This works fine if I have only one file as a source.

However, I have multiple files, for example STCOCICANHFM.txt and STHCSPHFM.txt
What I want to do is replace STAVOSHFM.txt with the name of the first file being processed and then process the STCOCICANHFM and lastly STHCSPHFM replacing the source file name each time. The ideas is being able to identify the source file based on the newly created file.

So I tried this:
Code:
  a "#!/usr/bin/awk -f" 
for EACHFILE in $FILEPATH/${FILENAME}*.txt
Do
awk -F, 'BEGIN {months ["JAN"]="AP01"; months ["FEB"]="AP02"; months ["MAR"]="AP03"; 
months ["APR"]="AP04"; months ["MAY"]="AP05"; months ["JUN"]="AP06";
months ["JUL"]="AP07"; months ["AUG"]="AP08"; months ["SEP"]="AP09";
months ["OCT"]="AP10"; months ["NOV"]="AP11"; months ["DEC"]="AP12";} {print > "a_"FILENAME"months[substr($3,0,3)]"20" 
substr($3,5,2)"_RR.txt"}' FILENAME
Done

However this does not work. Please tell me what do I need to correct this code. Thanks in advance
Last edited by RudiC; 12-19-2016 at 06:45 AM.. Reason: Corrected /code tag.
# 2  
Old 12-19-2016
Why not make use of awk's predefined FILENAME variable and adapt your script like
Code:
awk '... >...FILENAME...' *.txt

# 3  
Old 12-19-2016
I appreciate your answer, however,I have tried multiple iterations of the following changes to no avail.
Code:
"#!/usr/bin/awk -f"
For EACHFILE in * 
Do
awk -F, 'BEGIN {months ["JAN"]="AP01"; months ["FEB"]="AP02"; months ["MAR"]="AP03";
months ["APR"]="AP04"; months ["MAY"]="AP05"; months ["JUN"]="AP06";
months ["JUL"]="AP07"; months ["AUG"]="AP08"; months ["SEP"]="AP09";
months ["OCT"]="AP10"; months ["NOV"]="AP11"; months ["DEC"]="AP12";} {print > "a_" File "_ACTUAL_"months[substr($3,0,3)]"20" 
substr($3,5,2)"_RR.txt"}> File'*.txt
Done

Would you mind being very specific, as I mentioned I am new to UNIX and don't know where to place the changes. I keep getting the following error:
Syntax Error Line 1.
Smilie
# 4  
Old 12-19-2016
My first though would be the quotes in the first line "#!/usr/bin/awk -f"

Are they really there or is it some problem with pasting? Try taking them out to leave the first line being just #!/usr/bin/awk -f



Robin
# 5  
Old 12-19-2016
I have remove the quotes. I get this:
Code:
-bash: Done: Command not found

Last edited by rbatte1; 12-19-2016 at 10:24 AM.. Reason: Added CODE tags for output/error
# 6  
Old 12-19-2016
The shell commands are do and done, but you have them as Do and Done

I suspect that the editor you are using automatically capitalises the first character of what it sees as a sentence. This is usually a bad thing when writing code, especially as most of these helpful writing editors can shove lots of control characters into what you want as code.

I would suggest using a plain text editor, such as vi or ed - or at worst notepad on Windows.



Robin
This User Gave Thanks to rbatte1 For This Post:
Raul_Rodriguez
# 7  
Old 12-19-2016
Quote:
Originally Posted by Raul_Rodriguez
I appreciate your answer, however,I have tried multiple iterations of the following changes to no avail.
Code:
"#!/usr/bin/awk -f"

erroneous and not needed. If you want to use awk in the "shebang", the script needs to be pure awk.

Quote:
Code:
For EACHFILE in * 
Do

not used in script and thus obviously not needed

Quote:
Code:
awk -F, 'BEGIN {months ["JAN"]="AP01"; months ["FEB"]="AP02"; months ["MAR"]="AP03";
months ["APR"]="AP04"; months ["MAY"]="AP05"; months ["JUN"]="AP06";
months ["JUL"]="AP07"; months ["AUG"]="AP08"; months ["SEP"]="AP09";
months ["OCT"]="AP10"; months ["NOV"]="AP11"; months ["DEC"]="AP12";} {print > "a_" File "_ACTUAL_"months[substr($3,0,3)]"20" 
substr($3,5,2)"_RR.txt"}> File'*.txt

WHAT is File? And, WHY two redirections?


Clean and consistent indenting sometimes helps track down errors. Try running this from the command line (i.e. DON'T put it into a script file). It should show you the target files for the redirections without actually creating and populating those files:
Code:
awk -F, '
BEGIN   {months ["JAN"]="AP01"; months ["FEB"]="AP02"; months ["MAR"]="AP03";
         months ["APR"]="AP04"; months ["MAY"]="AP05"; months ["JUN"]="AP06";
         months ["JUL"]="AP07"; months ["AUG"]="AP08"; months ["SEP"]="AP09";
         months ["OCT"]="AP10"; months ["NOV"]="AP11"; months ["DEC"]="AP12";
        }
        {print "a_" FILENAME "_ACTUAL_"months[substr($3,0,3)]"20" substr($3,5,2)"_RR.txt"
        }
' *.txt

Last edited by RudiC; 12-19-2016 at 10:42 AM..
This User Gave Thanks to RudiC For This Post:
Raul_Rodriguez
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