Parsing text file and feeding it into an executable
Hello, everyone. I am working wtihin AIX 5.3, and I need to do the following:
read the each line of file BASE.txt
do XK {line contents}
if XK's output begins with "BASE", then append line contents to file "output.txt"
continue until end of file
Here is what I tried(unsuccessfuly):
Code:
for i in `cat BASE.txt`
do
if XK $i | grep BASE
then cat $i >> output.txt
done
Basically, I need to end up with a list of entries from the "BASE.txt" file that returned 'BASE' as the first four characters, when used as an argument in the "XK" executable. The script I have returns only this:
ksh: syntax error: `done' unexpected
I know I am making this too difficult. Can you guys please help?
Hello, everyone. I am working wtihin AIX 5.3, and I need to do the following:
read the each line of file BASE.txt
do XK {line contents}
if XK's output begins with "BASE", then append line contents to file "output.txt"
continue until end of file
Here is what I tried(unsuccessfuly):
Code:
for i in `cat BASE.txt`
do
if XK $i | grep BASE
then cat $i >> output.txt
done
Basically, I need to end up with a list of entries from the "BASE.txt" file that returned 'BASE' as the first four characters, when used as an argument in the "XK" executable. The script I have returns only this:
ksh: syntax error: `done' unexpected
I know I am making this too difficult. Can you guys please help?
You are missing a fi , which is the end of a if block , i guess .
Code:
for i in `cat BASE.txt`
do
if XK $i | grep BASE
then cat $i >> output.txt
fi
done
You are missing a fi , which is the end of a if block , i guess .
Code:
for i in `cat BASE.txt`
do
if XK $i | grep BASE
then cat $i >> output.txt
fi
done
Alas, no. All this does is list the grep lines. It doesn't create the "output.txt" file, listing only the lines from "BASE.txt" that match the test. However, you got me a lot further. Thank you.
Here is what I trying to do:
Code:
NEXT LINE IN BASE.txt ACTION RESULT ACTION
abcd XK abcd BASE not found append to output.txt
defg XK defg defg present none
hijk XK hijk BASE not found append to output.txt
lmno XK lmno lmno present none
pqrs XK pqrs pqrs present none
tuvw XK tuvw BASE not found append to output.txt
Last edited by Mordaris; 03-29-2012 at 02:06 PM..
Reason: Clarification
Beware of useless use of cat. Try this (untested):
Code:
#!/bin/ksh
# define constant variables. If a file name ever has to change, you'll have
# to change it here only.
typeset -r INPUTFILE=BASE.txt
typeset -r OUTPUTFILE=output.txt
typeset -r MATCH_TEXT=BASE
# Create or zero out the OUTPUTFILE if it already exists.
> $OUTPUTFILE
# Read INPUTFILE a line at a time. The line read goes into the variable "line".
while read line
do
# Call XK passing the line read in and save the output in xk_out.
xk_out=$(XK $line)
# If the first 4 characters of the output = $MATCH_TEXT, append the entire line read to
# OUTPUTFILE.
if [[ ${xk_out:0:4} == $MATCH_TEXT ]]; then
print $line >> $OUTPUTFILE
fi
done < $INPUTFILE
exit 0
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I am back for the second round today - :D
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Home
friends
friendship meter
Tools
Mirrors
Downloads
My Data
About Us
Help
My own results
BLAT Search Results
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0.2
812a3c3684310045f1cb3157bf5eebc4379804e98c82b56f3944564e7bf5dab5
0.6
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