If you want to shorten a file to zero length, which might be written to by a background process, do:
This reduces the file immediately while preserving its inode, so that the process that holds it open can still write to it.
Note that the "cat /dev/null" part is useless as there is nothing to cat from /dev/null in the first place. You can actually shorten a file with any command that output nothing, e.g. :
or
and with most shells like sh, dash, bash, ksh, zsh and the likes (actually any shell but the csh family ones), you can even skip the command and only use a redirection for the expected effect :
Hi
I'm trying to install gcc and the installation program tells me that I'm out of disk space! I have just installed the os (using the default settings for partitions and sizes) and have only installed apache on the machine. Can it really be out of disk space already?
How do I check how much... (4 Replies)
Hello,
Can someone please tell me which command to use to determine the available disk space on a given disk device?
I have to write a shell script that compresses files and stores them in a specific location but I am not sure how "conservative" I should be?
Thanks in advance!
Al. (4 Replies)
Hi experts
i am new in unix and informix
and would like to ask 2 questions
1) my server shows when using df -k
fs 1024-block used available
/usr 10079072 3668670 6381144
does this mean i have 10GB, and used up 3.7GB and available 6.3GB ???
is... (3 Replies)
Hi Experts.
I had 100% disk full , even though i have removed 2 GB space still dbf command shows 100%.
How to rectify that. Appreciate your prompt help. Thanks (1 Reply)
HI ...
I am New to the Unix...I am trying to write a script to check the disk space.
But i am not able to write it.
I know the command to check the disk space df -k,but unable to write the script..Can any body help me...
Thanks in advance... (3 Replies)
Hello All-
Am new member to this forum. Have some unix experience. But true believer in it compared to windows.
Have a question regarding the disk space.
I know a command to check the total disk space utilization using:
df -k .
but what is the command to check the same disk space by... (6 Replies)
Hi
This is my script for disk space monitoring
clear
if
then
echo "You must be root user to execute the script"
fi
ALERT_LEVEL=10
CONSUMPTION_LEVEL= `df -k | awk {'print $5'} | cut -d '%' -f1 | sed "1 d"`
for i in $CONSUMPTION_LEVEL
do
FILE_SYSTEM=`df -k | awk {'print $1'} |... (3 Replies)
Hi,
I am installing TAM-eb components in solaris V10.o, unfortunately am running out of space. when I -df i come across a lot of directories. i would like to know whether there is any way to free some disk space. (10 Replies)
Hi,
I have this :
uname -a
Linux servername 2.6.18-194.11.3.el5PAE #1 SMP Mon Aug 23 15:57:10 EDT 2010 i686 i686 i386 GNU/Linux
df -k
Sys. de fich. 1K-blocs Occupied Disponible Capacity Monted on
/u01/applis 10321208 3190160 6606760 33% /applis
Does it mean... (1 Reply)
Discussion started by: big123456
1 Replies
LEARN ABOUT SUNOS
shells
shells(4) File Formats shells(4)NAME
shells - shell database
SYNOPSIS
/etc/shells
DESCRIPTION
The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.
A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by the routines
which search the file. Blank lines are also ignored.
The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh,
/bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/pfcsh, /usr/bin/pfksh,
/usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.
Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)).
FILES
/etc/shells lists shells on system
SEE ALSO vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)SunOS 5.10 4 Jun 2001 shells(4)