Archive for the 'BASH Shell' Category

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Viewing 21-30 of 245 FAQ -

Throttle The Disk I/O Rate: Limit disk I/O for rsync Tool
I run a backup script called /root/backup.sh which runs rsync command. However, rsync makes a lots of disk I/O and network I/O. I’d like to reduce both disk I/O and network I/O. I’ve 10Mbps server connection and 160GiB SATA hard disk. How do reduce disk I/O so that the entire system doesn’t die or become unresponsive?
UNIX / Linux Command To Check Existing Groups and Users
How do I check the existing Linux / UNIX users and groups under Linux / UNIX operating system?
Debian / Ubuntu Linux: Send Automatic Email Notification When Security Upgrades Available
How do I force apt-get to send me email when upgrades or security updates available under Debian or Ubuntu Linux? Do I need to write a shell script which generates a mail with a list of all packages currently pending an upgrade?
Linux Check Health of 3ware RAID Array
How do I check the health of my 3ware RAID array under any Linux distribution? How do I access 3ware RAID Array web interface?
Squid Proxy WARNING! Your cache is running out of filedescriptors error and solution
I’ve Squid Proxy server with over 100 Windows workstation. I see following error message in my cache.log file - “WARNING! Your cache is running out of filedescriptors”. Do I need to filter proxy server requests to avoid this problem? How do I fix this problem under CentOS / Fedora / RHEL / Debian Linux?
APF Linux Firewall Open Port 22 From Specific / Selected IP Address Only
Q. I’ve CentOS Linux server configured with APF firewall. How do I open port 22 from specific IP address only? I’ve fix static ADSL IP address assgined and I’d like to open port 22 from my IP 202.5.1.3 only using APF firewall script. How do I configure firewall?
Linux Change The I/O Scheduler For A Hard Disk
Q. How do I change the I/O scheduler for a particular hard disk without rebooting my Linux server system?
Linux tar: /dev/st0: Cannot write: Invalid argument error and solution
Q. When I run tar command it fails with an error that read as follows:
tar: /dev/st0: Cannot write: Invalid argument
How do I fix this error under CentOS / Debian / Fedora / RHEL Linux HP server systems?
Linux / UNIX View Only Configuration File Directives ( uncommented lines of a config file )
Most Linux / UNIX configuration files are documented using comments, but some time I just need to see line of configuration text in a file. How can I view just the uncommented configuration file directives from squid.conf or httpd.conf file?
How do I Be More Productive In Vim?
I’m just starting in vim text editor but I’m annoying typing and retyping similar statements. Can you address me about it?