adding more information based on more research reading and testing

Author: gbowne1

using-gnu-ld-linker.md

@@ -52,12 +52,17 @@ My ld is GNU ld (GNU Binutils for Debian) 2.31.1.
 
 ## untested flags
 
-ld -T       used to specifiy the linker file used
-ld -o       Specifies the name of the output file (executable or library) to be generated
-ld -l       Links against the specified library, searching for it in the standard library directories.
-ld -pie     Creates a position-independent executable (PIE), which can be loaded at any address in memory
-ld -u       Prevents garbage collection of the specified external symbol.
-ld -L       Adds a directory to the library search path.
+- ld -T       used to specifiy the linker file used
+
+- ld -o       Specifies the name of the output file (executable or library) to be generated
+
+- ld -l       Links against the specified library, searching for it in the standard library directories.
+
+- ld -pie     Creates a position-independent executable (PIE), which can be loaded at any address in memory
+
+- ld -u       Prevents garbage collection of the specified external symbol.
+
+- ld -L       Adds a directory to the library search path.
 
 ## Use of ld
 

using-ifconfig.md

@@ -0,0 +1,38 @@
+# using ifconfig
+
+## Flags
+
+`ifconfig -a` is `all` mode, useful for seeing all the interfaces that are configured on the system, regardless of their current state
+`ifconfig -h` returns the help including hardware types
+`ifconfig -s` returns a listing of things like MTU size as a table
+`ifconfig -v` is `verbose` mode, useful when you need detailed information about the configuration of each interface
+`ifconfig -V` returns version numbers
+
+There seems to be no applicable uppercase flags as they do not return anything if you
+do them individually which is how I tested, other than -V.
+
+Apparently there are some others.. but I have not tested these, other than when I tried these did not return anything when done individually.
+
+-s Shows statistics for each network interface.
+-r Displays the network interfaces in reverse order.
+-n Shows numerical addresses instead of trying to determine symbolic host, port, or user names.
+-l Uses large addresses instead of trying to determine symbolic host, port, or user names.
+-d Detach the given packet from the network stream.
+-I Specifies the network interface to be configured.
+-e Displays the Ethernet (MAC) address of the interface.
+-M Displays the media type of the interface.
+-m Displays the Maximum Transmission Unit (MTU) of the interface.
+-p Sets the interface into promiscuous mode.
+-q Suppresses the display of certain information.
+-t Sets the timeout for the interface.
+-u Specifies the unit number of the interface.
+-w Writes the current configuration to the system's network configuration files.
+-f This option was used to set the IP address of an interface to a fixed address.
+-g Specifies the default gateway for the interface. This is more commonly managed with the ip route command in modern usage.
+-I Specifies the network interface to be configured. This is a more general option.
+-P Specifies the network prefix for the interface. This is more commonly managed with the ip addr command in modern usage.
+
+`--` flags seem to be used with `up` as in `ifconfig eth0 192.168.1.1 -- up` or `ifconfig eth0 up -- 192.168.1.1 netmask 255.255.255.0`.
+However, -- could be used for vebose flags like `--help`.
+
+there are man pages at man ifconfig.

using-ls-command.md

@@ -1,44 +1,87 @@
 # Using the ls command in linux
 
-Anything not in this list doesn't return anything.
+Using the ls command Anything not in this list doesn't return anything.  My ls comes from `ls (GNU coreutils) 8.30`, and installed to `/usr/bin/ls`
+
+## Flags
+
+### Uppercase flags
 
 `ls -a` directory listing in two columns. this only includes dotfiles.
+
 `ls -b`
+
 `ls -c`
+
 `ls -d` lists only . directories
+
 `ls -f` This shows dotfiles that start with `.`
+
 `ls -g` This shows permissions.
+
 `ls -h`
+
 `ls -i`
+
 `ls -k`
+
 `ls -l` This shows permissions.
+
 `ls -m` directory listing, comma separated
+
 `ls -n` This shows permissions.
+
 `ls -o` This shows permissions.
+
 `ls -p`
+
 `ls -q`
+
 `ls -r` This is a backwards reverse directory listing
+
 `ls -s` This shows files with their sizes
+
 `ls -t`
+
 `ls -u`
+
 `ls -v`
+
 `ls -w` requires some sort of argument to work
+
 `ls -x`
 
+### Uppercase flags
+
 `ls -A`
+
 `ls -B`
+
 `ls -C`
+
 `ls -D`
+
 `ls -F`  ends each entry with / in a wide format
+
 `ls -G`
+
 `ls -H`
+
 `ls -I` requires an argument
+
 `ls -L`
+
 `ls -N`
+
 `ls -Q` all entries appear in between double quotes in a wide format
+
 `ls -R` very interesting output when done by itself
+
 `ls -S`
+
 `ls -T` requires an argument.
+
 `ls -U`
+
 `ls -X` lists dirs/folders on the left half of a wide format output
+
 `ls -Z` lists all entries with a ? in a wide format

working-with-tmux.md

@@ -8,7 +8,9 @@ Check the version of tmux with `tmux -V`
 
 There is a configuration file used. It is `~/.tmux.conf`
 
-there is documentation at `man tmux`
+there is documentation at `man tmux`.
+
+The github is at <https://github.com/tmux/tmux>
 
 Systemwide configruation is at `/etc/tmux.conf`