Copy part of a variable

Shellslave · #1 (**permalink**) 1 Week Ago

Hi,

i was using a input file to get the last line of the file.But now i have stored
the values from the file to a variable and want the last line from the variable . Slightly confused on how to extract that data from the variable.

previous code,

Code:

 
cat input.txt
<TIME>00:15:48</TIME>
asderffgg
<TIME>15:15:20</TIME>
sdfrtghy
<TIME>22:14:40</TIME>
sderrthgh
<TIME>18:19:32</TIME>
sfrtryhbhgh
<TIME>16:15:48</TIME>
 
grep "<TIME>" input.txt > temp.txt
 
cat temp.txt
<TIME>00:15:48</TIME>
<TIME>15:15:20</TIME>
<TIME>22:14:40</TIME>
<TIME>18:19:32</TIME>
<TIME>16:15:48</TIME>
echo `tail -1 temp.txt` >temp.txt
 
o/p:
in the temp file i got <TIME>16:15:48</TIME>

now i dont want to use this temp file instead i want to put these in a variable and get the same output in that variable.
any help will be appreciated

---------- Post updated at 02:37 PM ---------- Previous update was at 02:29 PM ----------

Now i am trying to remove the temp file and use variable to do all the work done by temp file.

code now,

Code:

h=`grep "<TIME>" input.txt`
f=`echo $h|tail -1 `

this code is not working
i get
echo $h
<TIME>00:15:48</TIME> <TIME>15:15:20</TIME> <TIME>22:14:40</TIME><TIME>18:19:32</TIME> <TIME>16:15:48</TIME>

and also $f
<TIME>00:15:48</TIME> <TIME>15:15:20</TIME> <TIME>22:14:40</TIME><TIME>18:19:32</TIME> <TIME>16:15:48</TIME>

protocomm · #2 (**permalink**) 1 Week Ago

this code works in bash...

Code:

f=$(grep  "<TIME>"  input.txt | tail -1)

Code:

echo $f
<TIME>16:15:48</TIME>

Shellslave · #3 (**permalink**) 1 Week Ago

Hey thanks this code works equally good.

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Bits Awarded / Charged to protocomm for this Post
Date	User	Comment	Amount
1 Week Ago	Anonymous	Thanks protocomm	100

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