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Sed Again, Help !!!!!!!!!!!!

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Top Forums Shell Programming and Scripting Sed Again, Help !!!!!!!!!!!!
# 1  
Old 06-19-2007
Network Sed Again, Help !!!!!!!!!!!!
Every once in a while, i come across sed Smilie and usually get stuck Smilie.

Can someone please rescue me? I want the data from 18:30 to the line before 18:31. Timestamp may vary so need a generic solution.

Quote:
Sat 16 Jun 18:30
Sat 16 Jun 18:36
Sat 16 Jun 22:46
Sat 16 Jun 22:46
Sun 17 Jun 01:59
Sun 17 Jun 02:00
Sun 17 Jun 02:02
Sun 17 Jun 02:21
Sun 17 Jun 02:23
Sun 17 Jun 04:45
Sun 17 Jun 04:46
Sun 17 Jun 04:46
Sun 17 Jun 04:49
Sun 17 Jun 05:01
Sun 17 Jun 18:31
Sun 17 Jun 18:35
Sun 17 Jun 22:33
kamitsin
# 2  
Old 06-19-2007
Code:
sed "/18:31/,$ d" filename

If you have time 18:31 with date 16 then use this
Code:
sed "/17.*18:31/,$ d" filename

# 3  
Old 06-19-2007
Apologies, i was not clear in describing my problem.

I want all the line starting from 18:mm to line before 18:mm. Here all the minute fields may change so i can't hardcode anything.

Thanks for your help.
kamitsin
# 4  
Old 06-19-2007
Kamitsin,
As for not wanting to hardcode, the solution is either:
1) Passing the value as line parameter:
Code:
<your_shell> 18

In your shell:
Code:
mHour=$1

2) Prompting for it:
Code:
echo 'Enter hour: '
read mHour

3) Placing it in a file for reading:
Code:
mHour=`cat <parm_file>`     ### parm_file has only one record

After you set the value of variable "mHour":
Code:
sed -n "/ ${mHour}:/p" <input_file>

Note the space before "mHour" and the ":" after it.
# 5  
Old 06-19-2007
Hi
i think you should use a shell script with command-line args

as follow(h.sh):

first=18:$1
second=18:$2
sed -n "/$first/,/$second/{
p
}" filename

then exec as:

sh h.sh 30 31
# 6  
Old 06-19-2007
Thanks folks but i can't use command line arguments. I thought sed can do this for me but i guess i will have to look for other options to sort this out.

Anyways thanks for your feedback.
kamitsin
# 7  
Old 06-19-2007
Kamitsin,
As I said above, you have three options to enter a variable
in a program -- command line argument is only one of them.
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