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Shell Programming and Scripting
Check File Exists and compare to previous day file script
Post 302165279 by joeyg on Thursday 7th of February 2008 10:53:37 AM
02-07-2008
Once know filename
You can determine the filesize with something like:
> ls -l | tr -s " " | cut -d" " -f5
You can learn the filename for the day before with something like:
>find * -mtime -2 -mtime +1
And you are left to combine the logic of the two:
>tfile=$(find /<path> -type f -name "eon*.tar.Z" -mtime -1)
>yfile=$(find /<path> -type f -name "eon*.tar.Z" -mtime -2 -mtime +1)
>tsize=$(ls -l "$tfile" | tr -s " " | cut -d" " -f5)
>ysize=$(ls -l "$yfile" | tr -s " " | cut -d" " -f5)
[I think I have all of that syntax correct
]
Now, do your math with $tsize for today's file and $ysize for yesterday.
And execute whatever corrective actions are needed.
> ls -l | tr -s " " | cut -d" " -f5
You can learn the filename for the day before with something like:
>find * -mtime -2 -mtime +1
And you are left to combine the logic of the two:
>tfile=$(find /<path> -type f -name "eon*.tar.Z" -mtime -1)
>yfile=$(find /<path> -type f -name "eon*.tar.Z" -mtime -2 -mtime +1)
>tsize=$(ls -l "$tfile" | tr -s " " | cut -d" " -f5)
>ysize=$(ls -l "$yfile" | tr -s " " | cut -d" " -f5)
[I think I have all of that syntax correct
]Now, do your math with $tsize for today's file and $ysize for yesterday.
And execute whatever corrective actions are needed.
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LEARN ABOUT REDHAT
tmpwatch
TMPWATCH(8) System Administrator's Manual TMPWATCH(8) NAME
tmpwatch - removes files which haven't been accessed for a period of time SYNOPSIS
tmpwatch [-u|-m|-c] [-faqstv] [--verbose] [--force] [--all] [--test] [--fuser ] [--atime|--mtime|--ctime] [--quiet] <hours> <dirs> DESCRIPTION
tmpwatch recursively removes files which haven't been accessed for a given number of hours. Normally, it's used to clean up directories which are used for temporary holding space such as /tmp. When changing directories, tmpwatch is very sensitive to possible race conditions and will exit with an error if one is detected. It does not follow symbolic links in the directories it's cleaning (even if a symbolic link is given as its argument), will not switch filesystems, and only removes empty directories and regular files. By default, tmpwatch dates files by their atime (access time), not their mtime (modification time). If files aren't being removed when ls -l implies they should be, use ls -u to examine their atime to see if that explains the problem. If the --atime, --ctime or --mtime options are used in combination, the decision about deleting a file will be based on the maximum of this times. The hours parameter defines the threshold for removing files. If the file has not been accessed for hours hours, the file is removed. Fol- lowing this, one or more directories may be given for tmpwatch to clean up. OPTIONS
-u, --atime Make the decision about deleting a file based on the file's atime (access time). This is the default. -m, --mtime Make the decision about deleting a file based on the file's mtime (modification time) instead of the atime. -c, --ctime Make the decision about deleting a file based on the file's ctime (inode change time) instead of the atime; for directories, make the decision based on the mtime. -a, --all Remove all file types, not just regular files and directories. -d, --nodirs Do not attempt to remove directories, even if they are empty. -f, --force Remove files even if root doesn't have write access (akin to rm -f). -t, --test Doesn't remove files, but goes through the motions of removing them. This implies -v. -s, --fuser Attempt to use the "fuser" command to see if a file is already open before removing it. Not enabled by default. Does help in some circumstances, but not all. Dependent on fuser being installed in /sbin. -v, --verbose Print a verbose display. Two levels of verboseness are available -- use this option twice to get the most verbose output. SEE ALSO
cron(1), ls(1), rm(1), fuser(1) WARNINGS
GNU-style long options are not supported on HP-UX. AUTHORS
Erik Troan <ewt@redhat.com> Preston Brown <pbrown@redhat.com> Nalin Dahyabhai <nalin@redhat.com> 4th Berkeley Distribution Wed Nov 28 2001 TMPWATCH(8)