Shell Programming and Scripting

Dear Member,
i need help in this script
filename_DD_MM_YYYY_HHMMSS.log
this is the log file format
i need to split this name to three variables
1 variables contain filename
2 variables contain _DD_MM_YYY_
3 variables contains HHMMSS

and print the three variables
thanks for you attention

if WHOLEFILENAME=filename_DD_MM_YYYY_HHMMSS.log
Then the rest of code could look like:

Code:

FILENAME=`echo ${WHOLEFILENAME} | awk -F"_" '{ print $1 }'`
FILEDATE=`echo ${WHOLEFILENAME} | awk -F"_" '{ print "_"$2"_"$3"_"$4"_" }'`
FILETIME=`echo ${WHOLEFILENAME} | awk -F"_" '{ print $5 }' | awk -F"." '{ print $1 }'`

There are clever ways of doing all that in one line, but I like the keep it simple method!

HTH

Tony Fuller

There's no need for an external command:

Code:

name=filename_DD_MM_YYYY_HHMMSS.log
filename=${name%%_*}
temp=${name#"$filename"_}
ddmm=${temp%_*}
temp=${temp#*"$ddmm"_}
hhmmss=${temp%.log}

printf "Filename = %s\n" "$filename"
printf "   DD_MM = %s\n" "$ddmm"
printf "  HHMMSS = %s\n" "$hhmmss"

hi Tony how are you
first very thanks for your reply
and sorry for late but some health issue
second
this filename format LOG_FILE_`date '+%d_%m_%Y_%H%M%S'`.log
if i want to do this:-
i have a directory /export/home/dell/log contain a log file
# ls -ltr /export/home/dell/log/*_%d_%m_%Y_* >> /export/home/dell/LogsFor_05_04_2009
# awk -F" " '{print $9}' somelog
by this way i select the last columan only i select the path of the file only
i want to enter every line into script i make it

thanks in advance

I am not quite clear what you are asking for, but if you want the filename only of a file then you may do:

Code:

# basename /home/tony/testfile
testfile
#

and if you want the directory only then you may do:

Code:

# dirname /home/tony/testfile
/home/tony
#

If I have got your question wrong then please give an example of what you require.

/export/home/dell/log
Is a directory contain log file the filename format as this
Example:-
Filename_08_04_2009_0800.log

1- I want to select file *_05_04_2009_* and _06_04_2009_* and sort all file by time stamp to know which is run first and what is the second
2- Redirect the output to file

Aside:
If you are at design stage,
filename_YYYY_MM_DD_HHMMSS.log
would be easier to deal with than
filename_DD_MM_YYYY_HHMMSS.log

Questions:
How many files in directory /export/home/dell/log ?

Are there any subdirectories under /export/home/dell/log ? (This question is about using unix "find").

Is every file in directory /export/home/dell/log of the form:
filename_DD_MM_YYYY_HHMMSS.log ?

Is the file timestamp the same as the time in the file name?

Are there any underscore "_" or full stop "." or space " " characters in any "filename" string?

Is indexing these logs a one-off exercise or will it be run once per day at the end of each day (for example)?