Differences

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--- linux:start [2021/05/19 14:51] – [List info] mh
+++ linux:start [2026/01/01 10:23] (current) – [Useful shell] mh
@@ Line 1: / Line 1: @@
 ====== Linux ======
-  -[[linux:RBS|Razer Blade Stealth in Linux]]
+  -**[[linux:RBS|Razer Blade Stealth in Linux]]**
-  -[[linux:lampp|LAMPP local server]]
+  -**[[linux:lampp|LAMPP local server]]**
-  -[[linux:git|Git basics]]
+  -**[[linux:git|Git basics]]**
-  -[[linux:bash|Bash]]
+  -**[[linux:bash|Bash]]**
-  -[[linux:sed|sed]]
+  -**[[linux:sed|sed]]**
 ===== PATH =====
@@ Line 92: / Line 92: @@
 Extract the content of an AppImage :
+<code bash>
 ./your.AppImage --appimage-extract
+#And copy to somewhere sensible
+sudo cp squashfs-root/myapp.png /usr/share/icons/hicolor/256x256/apps/
+</code>
 This is useful if you want to get the Icon.
 [[https://github.com/AppImage/AppImageKit/releases|Link to AppImage Daemon]] //This Daemon scans well known places for appimages and creates menu entries and extracts icons//
+To run an AppImage just make it executable :
+<code bash>
+$ chmod +x /path/to/example.AppImage
+$ ./example.AppImage
+</code>
+Some AppImages support:
+<code bash>
+./MyApp.AppImage --install
+</code>
+This automatically:
+  * Creates a .desktop file
+  * Extracts the icon
+  * Registers everything correctly
+If it works, this is the cleanest solution. If not, manual extraction remains the most reliable path.
 ----
@@ Line 322: / Line 347: @@
 //Note to self : Added "mii" module to the list, the fix didn't seem to hold after reboot. Mii seems to be using r8169 and is network-monitoring-related//
+==== Fixing python on youtube-dl ====
+If following error occurs while using ''youtube-dl'' :
+<code bash>
+/usr/bin/env: ‘python’: No such file or directory
+</code>
+=== If python3 is not installed ===
+<code bash>
+$sudo apt install python3
+</code>
+=== If python3 is  installed ===
+<code bash>
+$whereis python3
+$sudo ln -s /usr/bin/python3 /usr/bin/python
+</code>
+Change first argument according to where python3 is installed.
 ===== Linux Screencast tools =====
@@ Line 479: / Line 527: @@
 <code bash>
-#All the following commands are verbose (-v)
+#All the following commands are verbose (-v) and target a file archive (-f)
-$ tar -xvf file.tar #Unpack tar
+$ tar -xvf file.tar #Unpack tar (-x : extract)
-$ tar -xvzf file.tar.gz #Unpack compressed (gzip) tar
+$ tar -xvzf file.tar.gz #Unpack compressed (gzip) tar (-z : filter through gzip)
-$ tar -cvf file.tar /path/folder #Pack folder into file.tar archive
+$ tar -cvf file.tar /path/folder #Pack folder into file.tar archive (-c : create)
-$ tar -cvzf file.tar /path/folder #Same as above with compression (gzip)
+$ tar -cvzf file.tar /path/folder #Same as above with compression (gzip) (-z : filter through gzip)
 </code>
@@ Line 489: / Line 537: @@
 ----
+=== Samba ===
+<code bash>
+sudo service smbd start/stop/restart
+</code>
+----
+=== Empty a file ===
+<code bash>
+: > ~/path/to/file
+</code>
+  * : is the shell’s no-op builtin
+  * Redirection truncates the file to zero bytes
+  * File permissions and ownership are preserved
+===== apt and dpkg =====
+==== Fixing apt dependency problems ====
+This can fix some states in which apt is broken and refuses to update because some libraries fail :
+<code bash>
+$ dpkg --configure -a
+$ apt --fix-broken install
+</code>
@@ Line 516: / Line 592: @@
 On Macs :
-<code>
+<code bash>
-sysctl -n machdep.cpu.brand_string
+$ sysctl -n machdep.cpu.brand_string
 </code>
@@ Line 586: / Line 662: @@
   *[[https://en.wikipedia.org/wiki/Magic_SysRq_key#Configuration|SysRq Keys]] -- Best combo is ''Alt + SysRq + R E I S U B''
   *[[https://www.guruadvisor.net/en/software-saas/465-advanced-linux-troubleshooting-methods-and-tools-for-diagnostics-and-problem-identification|Advanced Linux Troubleshooting]]
+  *[[https://wiki.networksecuritytoolkit.org/nstwiki/index.php?title=HowTo_Create_A_GPT_Disk_With_EFI_System_And_exFAT_Partitions_Using_Parted|Creating GPT/exFAT partitions using CLI]]