Screen is a Linux utility for making multiple displays with one login and switching, cutting and pasting between the sessions. Here is an abbreviated list of what to do. A full list of course is found in “man screen” or “info screen”
- Invoke: screen
- Detatch ^a D
- re-attach screen -r
- New session: ^a c
- Next session: ^a n
- Previous session: ^a p
- List sessions ^a “
- Title a window: ^a A
- Split screen: ^a | or ^a s (vertical, horizontal)
- Other screen (when split): ^a tab or ^a ^i
- Unsplit screen: ^a Q
- Copy mode: ^a [
- in copy mode, can move the cursor with arrow keys,hjkl,
- pg up, pg down, ^b ^f
- Search backwards: ? or ^r
- Search forwards: ^a s or /
- Next / Prev search pattern: n or N
- Mark: space
- Copy: Enter
- Exit: any non-copy mode key (q for one)
- Paste: ^a ]
Let’s say you don’t know the connection for your “smbclient” command. Well, you would have to do some browsing. That is not the job of “smbclient”. Here are some discovery commands.
- smbtree #show a tree of the neighborhood.
- nmblookup -S ‘*’ #list all of the servers on all workgroups.
Linux is changing to system D. The commands previously done are being replaced. Here are some of the old and new ways of doing things.
Firewall
Old way: iptables -I INPUT -p tcp --dport 5201 -j ALLOW save: service iptables save New way: firewall-cmd --add-port 5201/tcp save: firewall-cmd --permanent --add-port 5201/tcp Also there is --add-service servicename
Services
Old way:
service httpd stop
New way:
systemctl stop httpd
Old:
chkconfig httpd on
New:
systemctl enable httpd
Log files
Old:
less secure
New:
journalctl -u sshd
packages for Centos / Fedora
Old: yum
New: dnf
Microsoft Windows does not have a delay function or application that can cause a specific delay in program execution for .cmd (and .bat) scripting. This can be overcome by pinging the localhost interface
ping -n seconds localhost > NUL:
This will delay the specified number of seconds before the script executes the next line of code.
Who the heck uses Fingerprint Daemon, anyway?
To disable:
authconfig --disablefingerprint --update
A NIC can have multiple IP addresses and this is easiest to do with ifconfig.
ifconfig eth0:0 10.0.0.12 netmask 255.255.0.0
To delete the alias:
ifconfig eth0:0 down
I loaded the development app on the mac.
I tried to configure glib-2.34.3, but it required gettext. So, I got gettext. The only problem I has was the file stpncpy.c had a weak_alias macro that allowed stpncpy.c to declare a function. However, since Mac already had that function, there was a problem. I had to define weak_alias in that file:
#define weak_alias(a,b) /* */
Of course, the right way to do this would be to check if stpncpy.c is defined. The test failed on bash. Everything else passed.
On to the build of glib2.
I had to define export LIBFFI_LIBS=-lffi and export LIBFFI-CFLAGS=-I/usr/include/ffi
Then, config did not put these values into the make file so I had to invoke make with “-e” option.
The package I wanted to compile needed pkg-config, so I went to http://www.freedesktop.org/wiki/Software/pkg-config to get it. I needed to put in the variables from /usr/local/lib/pkgconfig/glib-2.0.pc from Libs: and Cflags: as
GLIB_LIBS="-L/usr/local/lib -lglib-2.0 -lintl"
GLIB_CFLAGS="-I/usr/local/include/glib-2.0 -I/usr/local/lib/glib-2.0/include"
