Reputation: 609
New to linux and trying to escape doing this the hard way. I have a file ("output.txt") that contains the results of a 'find' command. Example first three lines from "output.txt":
/home/user/temp/LT50150292009260GNC01/L5015029_02920090917_MTL.txt
/home/user/temp/LT50150292009276GNC01/L5015029_02920091003_MTL.txt
/home/user/temp/LT50150292009292GNC01/L5015029_02920091019_MTL.txt
I'd like to use awk or sed (or similar) to extract two parts from the path listed for each line, and output to a new file ("run.txt") with extra information added on each line like so:
cd /home/user/temp/LT50150292009260GNC01; $RUNLD L5015029_02920090917_MTL.txt
cd /home/user/temp/LT50150292009276GNC01; $RUNLD L5015029_02920091003_MTL.txt
cd /home/user/temp/LT50150292009292GNC01; $RUNLD L5015029_02920091019_MTL.txt
I'm guessing this might also involve something like "cut", but I can't get my head wrapped around how to account for changing folder and file names.
Any help would be much appreciated.
Upvotes: 3
Views: 1305
Reputation: 58578
This might work for you:
sed 's/\(.*\)\//cd \1; $RUNLD /' file
cd /home/user/temp/LT50150292009260GNC01; $RUNLD L5015029_02920090917_MTL.txt
cd /home/user/temp/LT50150292009276GNC01; $RUNLD L5015029_02920091003_MTL.txt
cd /home/user/temp/LT50150292009292GNC01; $RUNLD L5015029_02920091019_MTL.txt
Upvotes: 0
Reputation: 247250
Just with bash
while IFS= read -r filename; do
printf 'cd %s; $RUNLD %s\n' "${filename%/*}" "${filename##*/}"
done < output.txt > run
See http://www.gnu.org/software/bash/manual/bashref.html#Shell-Parameter-Expansion
Upvotes: 1
Reputation: 72786
sed -e 's/^/cd /; s|/\([^/]*\)$|; \$RUNLD \1|' file
This prepends "cd " and replaces the last / with "; $RUNLD ". Voila!
Upvotes: 1
Reputation: 360733
sed 's|^|cd |; s|/\([^/]*\)$|; $RUNLD \1|' inputfile > run
It says:
Upvotes: 0
Reputation: 141935
I'd probably go about this with a loop based grep solution since I don't know cut
, or awk
very well haha. This does the trick:
while read x; do folder=$(echo "$x" | grep -o '^.*/'); file=$(echo "$x" | grep -o '[^/]*$'); echo "cd ${folder:0:-1}; \$RUNLD $file"; done < output.txt > run
Upvotes: 0