03-23-2009
mv `ls -tr |tail -1` newdirname
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1. UNIX for Dummies Questions & Answers
I'm writing a script to find the oldest file in a directory. I know this can be done by using ls -rt | tail -1 but these are rather large directories and that can be somewhat slow since the script will be running constantly.
Are there any other ways to do this that would be faster? I looked to... (2 Replies)
Discussion started by: bergerj3
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2. Shell Programming and Scripting
Hi all,
I need your assistance in removing the oldest file in a directory.
I posted the same thread 3 days back and I got the following answer
ls -1 -t | tail -1 | xargs rm
which is not covering the case when there are directories older than the oldest file.
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I'm trying to write a script that will look in an /exports folder for the oldest export file and move it to a /staging folder. "Oldest" in this case is actually determined by date information embedded in the file names themselves.
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4. Shell Programming and Scripting
Hi all,
I am a newbie to scripting and I need your help regarding finding the oldest file in a particular directory. My intention is to remove that oldest file.
Are there any options available with the "find" command to do this..
Thanks in advance for your help
Pavan (4 Replies)
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5. UNIX and Linux Applications
I am trying to determine the oldest and most recent files in a huge directory. I am using an ls -tr statement outside my find statement. The directory is too big and I am getting an "arg list too long" error. Is there something I can put in my find statement that doesn't create a list to... (2 Replies)
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6. Shell Programming and Scripting
Hey! I have found similar posts both here and on other sites regarding this, but I cannot seem to get my script to work. I want to delete the oldest file in a test directory if there are more than two files. My script is currently:
#!/bin/bash
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I have to move files (one by one) from one dir to another, in such a way that the oldest file should be moved first followed by the latest file. The source dir (from where I am moving files) may contains a minimum of 20K files at any point of time. I am not able to use "ls -ltr" as it throws error... (6 Replies)
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8. UNIX for Dummies Questions & Answers
Hi All,
I need to delete the oldest file in folder when the file count in the folder exceed 6 ( i have a process that puts the source files into this folder )
E.x : Folder : /data/opt/backup
01/01/2012 a.txt
01/02/2012 b.txt
... (1 Reply)
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9. UNIX for Advanced & Expert Users
There are some 25,000 files in 7,000 directories in my source library and I am trying to find oldest files. I am running this find:
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10. Shell Programming and Scripting
Hello,
I have a simple while loopinside the script and I wish to tell unix to start reading from the oldest txt file. So, in case some new txt files are transferred into the same folder, the script will not take into consideration until all older files are completely processed. How may I do this?... (3 Replies)
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LEARN ABOUT FREEBSD
dh_installdeb
DH_INSTALLDEB(1) Debhelper DH_INSTALLDEB(1)
NAME
dh_installdeb - install files into the DEBIAN directory
SYNOPSIS
dh_installdeb [debhelperoptions]
DESCRIPTION
dh_installdeb is a debhelper program that is responsible for installing files into the DEBIAN directories in package build directories with
the correct permissions.
FILES
package.postinst
package.preinst
package.postrm
package.prerm
These maintainer scripts are installed into the DEBIAN directory.
Inside the scripts, the token #DEBHELPER# is replaced with shell script snippets generated by other debhelper commands.
package.triggers
package.shlibs
These control files are installed into the DEBIAN directory.
Note that package.shlibs is only installed in compat level 9 and earlier. In compat 10, please use dh_makeshlibs(1).
package.conffiles
This control file will be installed into the DEBIAN directory.
In v3 compatibility mode and higher, all files in the etc/ directory in a package will automatically be flagged as conffiles by this
program, so there is no need to list them manually here.
package.maintscript
Lines in this file correspond to dpkg-maintscript-helper(1) commands and parameters. However, the "maint-script-parameters" should not
be included as debhelper will add those automatically.
Example:
# Correct
rm_conffile /etc/obsolete.conf 0.2~ foo
# INCORRECT
rm_conffile /etc/obsolete.conf 0.2~ foo -- "$@"
In compat 10 or later, any shell metacharacters will be escaped, so arbitrary shell code cannot be inserted here. For example, a line
such as "mv_conffile /etc/oldconffile /etc/newconffile" will insert maintainer script snippets into all maintainer scripts sufficient
to move that conffile.
It was also the intention to escape shell metacharacters in previous compat levels. However, it did not work properly and as such it
was possible to embed arbitrary shell code in earlier compat levels.
The dh_installdeb tool will do some basic validation of some of the commands listed in this file to catch common mistakes. The
validation is enabled as a warning since compat 10 and as a hard error in compat 12.
SEE ALSO
debhelper(7)
This program is a part of debhelper.
AUTHOR
Joey Hess <joeyh@debian.org>
11.1.6ubuntu2 2018-05-10 DH_INSTALLDEB(1)