To find older files you can use the find command with the -mtime option.
To keep 5 files of the selection you can pipe the result to awk, to ignore the first 5 files you can do something like:
So it should look like:
If you have many files you can use xargs.
Check the man page of find for the options, search on this forum or Google for examples.
Hi all,
I'm newby in this great forum.
I'm working as an Intelligent Networks Administrator for a Fixed telephony company.
I want to write a script shell that helps me in my daily/weekly tasks.
A voice switch sends every hour a statistic file to a log directory.
By now, i've got more than 5000... (4 Replies)
Hi Friends,
I am new to UNIX. I need to merge all the files(to FINAL.txt) in single directory based one condition. Out of all the files one of file will have specific value like :GF01: at any where in the file.
so the file which is having :GF01: should be appended at the last.
EX:... (5 Replies)
I have to write one script which will delete the files in the below passion.
If today is 17-Feb-2010 then the script delete only 17-JAN-2010 files from the directory.
Could you please help me, How will I delete the files when the year is leap year, if today is 30th Mar 2010 then how will... (1 Reply)
I have several files in a folder and I would like to delete the ones that do not contain all the required information (size) let say 1kb.
Any ideas? (4 Replies)
hi
i have to move files and send an email and attached the bad files to inform the developer about that.
#!/bin/ksh
BASE_DIR=/data/SrcFiles
cd $BASE_DIR
## finding the files from work directory which are changed in 1 day
find -type f -name "*.csv" –ctime 0 > /home/mydir/flist.txt
##... (14 Replies)
hi
i have my input data like this
aaa bbb ccc
asa dff nmj
mnj saa dff
oik
aax cdx saa
oik
asq sdf dssi want my output file to be like this
mnj saa dff oik
aax cdx saa oiki want to retain only those lines which will have oik just below them and i want oik to be as next column to those... (1 Reply)
hi
i have a set of similar files. i want to delete lines until certain pattern appears in those files. for a single file the following command can be used but i want to do it for all the files at a time since the number is in thousands.
awk '/PATTERN/{i++}i' file (6 Replies)
Hi,
Can any one help me, in deleting the records from the database table based on the following condition:
script should take a configurable parameter as input. The input is nothing but “no. of years”.
For example, if I enter 2 as input parameter, then the 2 year old records should get... (2 Replies)
Discussion started by: zxcjggu708
2 Replies
LEARN ABOUT OSX
sleep
SLEEP(1) BSD General Commands Manual SLEEP(1)NAME
sleep -- suspend execution for an interval of time
SYNOPSIS
sleep seconds
DESCRIPTION
The sleep command suspends execution for a minimum of seconds.
If the sleep command receives a signal, it takes the standard action.
IMPLEMENTATION NOTES
The SIGALRM signal is not handled specially by this implementation.
The sleep command will accept and honor a non-integer number of specified seconds (with a '.' character as a decimal point). This is a non-
portable extension, and its use will nearly guarantee that a shell script will not execute properly on another system.
EXIT STATUS
The sleep utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
To schedule the execution of a command for x number seconds later (with csh(1)):
(sleep 1800; sh command_file >& errors)&
This incantation would wait a half hour before running the script command_file. (See the at(1) utility.)
To reiteratively run a command (with the csh(1)):
while (1)
if (! -r zzz.rawdata) then
sleep 300
else
foreach i (`ls *.rawdata`)
sleep 70
awk -f collapse_data $i >> results
end
break
endif
end
The scenario for a script such as this might be: a program currently running is taking longer than expected to process a series of files, and
it would be nice to have another program start processing the files created by the first program as soon as it is finished (when zzz.rawdata
is created). The script checks every five minutes for the file zzz.rawdata, when the file is found, then another portion processing is done
courteously by sleeping for 70 seconds in between each awk job.
SEE ALSO nanosleep(2), sleep(3)STANDARDS
The sleep command is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A sleep command appeared in Version 4 AT&T UNIX.
BSD April 18, 1994 BSD