问题
i'm having a bit of a problem and i've been searching allll day. this is my first Unix class don't be to harsh.
so this may sound fairly simple, but i can't get it
I have two text files
file1
David 734.838.9801
Roberto 313.123.4567
Sally 248.344.5576
Mary 313.449.1390
Ted 248.496.2207
Alice 616.556.4458
Frank 634.296.1259
file2
Roberto Tuesday 2
Sally Monday 8
Ted Sunday 16
Alice Wednesday 23
David Thursday 10
Mary Saturday 14
Frank Friday 15
I am trying to write a script using a looping structure that will combine both files and come out with the output below as a separate file
output:
Name On-Call Phone Start Time
Sally Monday 248.344.5576 8am
Roberto Tuesday 313.123.4567 2am
Alice Wednesday 616.556.4458 11pm
David Thursday 734.838.9801 10am
Frank Friday 634.296.1259 3pm
Mary Saturday 313.449.1390 2pm
Ted Sunday 248.496.2207 4pm
This is what i tried( i know its horrible)
echo " Name On-Call Phone Start Time"
file="/home/xubuntu/date.txt"
file1="/home/xubuntu/name.txt"
while read name2 phone
do
while read name day time
do
echo "$name $day $phone $time"
done<"$file"
done<"$file1"
any help would be appreciated
回答1:
First, sort the files using sort and then use this command:
paste file1 file2 | awk '{print $1,$4,$2,$5}'
This will bring you pretty close. After that you have to figure out how to format the time from the 24 hour format to the 12 hour format.
If you want to avoid using sort separately, you can bring in a little more complexity like this:
paste <(sort file1) <(sort file2) | awk '{print $1,$4,$2,$5}'
Finally, if you have not yet figured out how to print the time in 12 hour format, here is your full command:
paste <(sort file1) <(sort file2) | awk '{"date --date=\"" $5 ":00:00\" +%I%P" |& getline $5; print $1 " " $4 " " $2 " " $5 }'
You can use tabs (\t) in place of spaces as connectors to get a nicely formatted output.
回答2:
In this case join command will also work,
join -1 1 -2 1 <(sort file1) <(sort file2)
Description
-1 -> file1
1 -> first field of file1 (common field)
-2 -> file2
1 -> first field of file2 (common field)
**cat file1**
David 734.838.9801
Roberto 313.123.4567
Sally 248.344.5576
Mary 313.449.1390
Ted 248.496.2207
Alice 616.556.4458
Frank 634.296.1259
**cat file2**
Roberto Tuesday 2
Sally Monday 8
Ted Sunday 16
Alice Wednesday 23
David Thursday 10
Mary Saturday 14
Frank Friday 15
output
Alice 616.556.4458 Wednesday 23
David 734.838.9801 Thursday 10
Frank 634.296.1259 Friday 15
Mary 313.449.1390 Saturday 14
Roberto 313.123.4567 Tuesday 2
Sally 248.344.5576 Monday 8
Ted 248.496.2207 Sunday 16
来源：https://stackoverflow.com/questions/20185966/combine-text-from-two-files-output-to-another