- Web Server
- Control Panels
- Site Map/RSS Feeds
Use the commad:
or the keyboard shortcut:
[CTRL] + [L]
The command is:
convert -border 2x2 old.jpg new.jpg
This creates a new image (new.jpg) with a 2 pixel border from the image old.jpg.
To set the bordercolor to red, use this command:
convert -border 2x2 -bordercolor "#FF0000" old.jpg new.jpg
To get a list of the installed services on the shell, you may use this command (on Fedora, RedHat, CentOS, SuSE, and Mandriva):
To view only the processes owned by a specific user, use the following command:
top -U [USERNAME]
and replace [USERNAME] with the name of the user.
To make a snapshot of the current process table, use the following command:
top -n 1 -b > /tmp/processtable.txt
You can now view the textfile with any text editor, e.g. pico or vi.
With the grep command.
If you want to find out if the term user is in /etc/httpd/conf/httpd.conf, you would run
grep -i user /etc/httpd/conf/httpd.conf
(-i makes the search case-insensitive).
Normally grep does not tell you the line number where it finds the term. If you want to find out the line number, run
grep -n -i user /etc/httpd/conf/httpd.conf
You can find out about logged in users either by running
server:~# who root pts/0 Nov 12 11:28 (192.168.0.202)
which gives more detailed output:
server:~# w 11:29:49 up 2:19, 1 user, load average: 0.02, 0.01, 0.00 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT root pts/0 192.168.0.202 11:28 0.00s 0.08s 0.01s w
To edit files on the command line, you can use an editor such as vi. To open the file, run
Now you see the contents of the file (if there is any. Please note that the file is created if it does not exist yet.).
The most important commands in vi are these:
Press i to enter the Insert mode. Now you can type in your text.
To leave the Insert mode press ESC.