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Cutting text from one location to another

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# 1  
Old 11-28-2006
Bug Cutting text from one location to another
The following text appears multiple times in a script and it resides in many scripts.
I would like to make the following changes to the text:

Text:
/usr/local/bin/gmail -t abc@yahoo.com -m "this is a test" -f xyz@yahoo.com

I need to cut the text that comes after -m which is "this is a test" and place it in front of the line with echo statment.
I think Awk will not work as -m will not be in the same column everytime.

final result:

echo "this is a test" | /usr/local/bin/gmail -t abc@yahoo.com -m -f xyz@yahoo.com

Any suggestions?

Thank you.
# 2  
Old 11-28-2006
Here's a possible awk solution that seems to work, but makes assumptions about the input data:
Code:
Input:
this is a line foo
/usr/local/bin/gmail -t abc@yahoo.com -m "this is a test" -f xyz@yahoo.com
this is a line bar
this is a line baz

Code:
awk '/^\/usr\/local\/bin\/gmail/ { 
	match($0,/\"..*\"/)
	print "echo", substr($0,RSTART,RLENGTH), "|", $1, $2, $3, $4, $(NF-1), $NF
	next
     }
     {
	print
     }' inputfile.txt

Code:
Output:
this is a line foo
echo "this is a test" | /usr/local/bin/gmail -t abc@yahoo.com -m -f xyz@yahoo.com
this is a line bar
this is a line baz

# 3  
Old 11-28-2006
Thanks

but, this just prompts the result on the screen. I need to replace it in the file that has the input text string.

I was trying to put your solution in a variable and replace it with changed text, but not successful.

Plus as mentioned earlier it is not a fixed length text, -m could be in different column.

Smilie
Last edited by hemangjani; 11-28-2006 at 02:58 PM..
# 4  
Old 11-28-2006
Just use i/o redirection and a temp file:
Code:
awk '/^\/usr\/local\/bin\/gmail/ { 
	match($0,/\"..*\"/)
	print "echo", substr($0,RSTART,RLENGTH), "|", $1, $2, $3, $4, $(NF-1), $NF
	next
     }
     {
	print
     }' inputfile.txt > inputfile.txt.tmp
mv inputfile.txt.tmp inputfile.txt

I don't see how the variability of the position of "-m" matters. Awk is just performing the translation on any line beginning with "/usr/local/bin/gmail".
# 5  
Old 11-28-2006
Sorry, I think was not clear enough.

When I mean "-m" being variable in position is by:

/usr/local/bin/gmail -t abc@yahoo.com -m "this is a test" -f xyz@yahoo.com

/usr/local/bin/gmail -t abc@yahoo.com -m "this is a test" -f xyz@yahoo.com -a /home/users/note1.txt

/usr/local/bin/gmail -t abc@yahoo.com pqr@yahoo.com -m "this is a test" -f xyz@yahoo.com

/usr/local/bin/gmail -t abc@yahoo.com -a /home/users/note1.txt -m "this is a test" -f xyz@yahoo.com


Now when we print,
print "echo", substr($0,RSTART,RLENGTH), "|", $1, $2, $3, $4, $(NF-1), $NF

we are only printing first 4 columns and then second last and last column of the original text.

If I use the above input strings, the print statement will not give what is expected.
# 6  
Old 11-29-2006
Code:
echo /usr/local/bin/gmail -t abc@yahoo.com -m "this is a test" -f xyz@yahoo.com | sed 's/\(.*-m \)\(.*\)\( -f.*\)/echo \"\2\" | \1\3/'

# 7  
Old 11-29-2006
echo "/usr/local/bin/gmail -t abc@yahoo.com -m \"this is a test\" -f xyz@yaahoo.com" | awk -F"\"" '{print "echo " $2" " $1 $3}
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