I have a korn shell script that does some things that depend on creating and writing a file in a directory. I'm looking for a more elegant/efficient way to do the check than what I'm using now:
Has anyone got a few tips on how I can test if the file size is 0?
I am moving files on a regular basis from one location to another with ftp. The files which are 0 bytes in size we want to discard.
Thankyou in advance. (3 Replies)
I'm running this simple little test:
#!/bin/sh
if ; then
echo $1
else
echo "Usage:`basename $0` dir"
fi
echo "The end of the script."
The idea is, to test if you have passed a dir to the script. The problem is, it seems to exit the if statement when $1 is null:
... (3 Replies)
Hello,
I need to determine if a file I have is empty or not. How can I go about doing this in shell scripting? Some sample code would be appreciated?
Thanks, (6 Replies)
i have written this simple script called isdir.sh
#! /bin/bash
dir=$1
_ls=`ls $dir`
for file in $_ls
do
if
then
echo "D $file"
fi
donethe output is not right.
for example
$ ./isdir.sh src
***no output***
but i have in ~/src some directories
drwxr-xr-x 2... (5 Replies)
script name: filetest.sh
if ; then
echo " You didn't enter any argument"
elif ; then
echo " file not exist"
elif ; then
echo " file not readable"
elif ; then
echo " file not writable"
else
echo " file both readable and writable"
fi
running like...
$ ./filetest filename
... (3 Replies)
Hi,
could any one tell is there any test-suite or any idea How to do data corruption validation testing, means there is no any data corruption ?
Regards
Manish (1 Reply)
Hi Gurus, kindly analyse the following for me, please
OS: Windows 7
Code location: C:\
Output: "Program Files not being recognised"
"System Volume Information is a directory"
"Windows not being recognised"
main {
my @dirlist = <*>;
foreach my $fn... (0 Replies)
I am trying to test the output of a file. What I have so far is this:
if ]; then echo "yes";fi
The problem with this is it works but I only want it to print out if the file contains the word "Compacted." The == sign means identical or equal to so it won't work. I tried ~ but that doesn't... (4 Replies)
Discussion started by: newbie2010
4 Replies
LEARN ABOUT DEBIAN
apt-show-versions
APT-SHOW-VERSIONS(1p) User Contributed Perl Documentation APT-SHOW-VERSIONS(1p)NAME
apt-show-versions - Lists available package versions with distribution
DESCRIPTION
apt-show-versions parses the dpkg status file and the APT lists for the installed and available package versions and distribution and shows
upgrade options within the specific distribution of the selected package.
This is really useful if you have a mixed stable/testing environment and want to list all packages which are from testing and can be
upgraded in testing.
apt-show-versions uses caching for the status information of installed and available packages. If you run apt-show-versions as root the
cache is updated as needed. If you run as non-root uses the newest available information, but can't update the cache. If you run as root
with the option -i the cache is initialized or updated only.
SYNOPSIS
apt-show-versions [-h] [[-p] package name] [-a] [-b]
OPTIONS
If you don't give any options the status of all installed packages is printed.
-p package, --package=package
Print available and installed versions for specified package. You can also specify a package name without the option -p. If -p and a
package name are missing, all installed packages are displayed.
-r, --regex
interpret package from option -p as a regex.
-R, --regex-all
like --regex, but also show matching packages which are not installed
-u, --upgradeable
Print only upgradeable packages
-a, --allversions
Print all available versions of the selected packages
-b, --brief
Print only package_name/distribution for upgradeable packages
-v, --verbose
Prints out messages about which Package files are parsed.
-i, --initialize
Initialize or update package cache only (as root). Do this every time when the status of the installed or available packages has
changed. Initialization is done automatically on installation of the package and via a cron.daily job.
-stf file, --status-file=file
Use file as the dpkg status file instead of /var/lib/dpkg/status
-ld directory, --list-dir=directory
Use directory as path to apt's list files instead of /var/state/apt/lists/ or /var/lib/apt/lists/
-h, --help
Prints out command-line help.
EXIT CODES
0 No error
1 Wrong usage
2 apt-show-versions has been called with exactly one package and upgradeable option set, but package is uptodate. As no output has been
requested, this case gets signaled using the exit code.
255 Unspecified error
EXAMPLES
If you want to know for all your installed packages whether they are uptodate or upgradeable, use:
apt-show-versions
If you want to have a list of all upgradeable packages:
apt-show-versions -u
To get a list of all available versions of libc6:
apt-show-versions -a -p libc6
To get information about several packages:
apt-show-versions dpkg apt
apt-show-versions -r ^texlive
To upgrade all packages in testing:
apt-get install `apt-show-versions -u -b | fgrep testing`
AUTHOR
Christoph Martin, martin@uni-mainz.de
SEE ALSO apt(8), dpkg(1)perl v5.14.2 2012-10-26 APT-SHOW-VERSIONS(1p)