I was using a friend's laptop with an Ubuntu 16 OS. I was asked
to clean the historic files an after browsing a few websites, I used:
cat /dev/null > ~/.bash_history
command which appear not to work (I was not asked to input any password).
I then believe I used the command below, which I was asked to
plug in the laptop's password:
sudo gedit .bash_history
As soon as I pressed enter, the internet connection went down.
I tried to connect the internet back, but the computer could not
locate any wifi signal.
I appreciate any help you can give me to resolve this problem.
Thank you.
Thank you so much for trying to help me with this.
Please find the code you requested below:
X:~$ service network-manager restart
X:~$ dmesg | tail -n100
[ 6.129998] systemd[1]: Listening on udev Control Socket.
[ 6.130035] systemd[1]: Listening on fsck to fsckd communication Socket.
[ 6.130088] systemd[1]: Started Trigger resolvconf update for networkd DNS.
[ 6.130222] systemd[1]: Created slice System Slice.
[ 6.130325] systemd[1]: Created slice User and Session Slice.
[ 6.130340] systemd[1]: Reached target Slices.
[ 6.130352] systemd[1]: Reached target User and Group Name Lookups.
[ 6.130413] systemd[1]: Listening on Journal Socket.
[ 6.148183] systemd[1]: Mounting Huge Pages File System...
[ 6.148858] systemd[1]: Started Braille Device Support.
[ 6.149766] systemd[1]: Mounting Debug File System...
[ 6.150627] systemd[1]: Mounting POSIX Message Queue File System...
[ 6.151304] systemd[1]: Starting Set console keymap...
[ 6.152068] systemd[1]: Starting Create list of required static device nodes for the current kernel...
[ 6.232277] systemd[1]: Starting Load Kernel Modules...
[ 6.233014] systemd[1]: Started Read required files in advance.
[ 6.316281] systemd[1]: Starting Uncomplicated firewall...
[ 6.316430] systemd[1]: Listening on Journal Audit Socket.
[ 6.317254] systemd[1]: Starting Journal Service...
[ 6.780172] intel ips 0000:00:1f.6: i915 driver attached, reenabling gpu turbo
[ 6.808348] systemd[1]: Started Uncomplicated firewall.
[ 6.842875] systemd[1]: Started Create list of required static device nodes for the current kernel.
[ 6.856450] systemd[1]: Starting Create Static Device Nodes in /dev...
[ 7.002969] systemd[1]: Mounted Huge Pages File System.
[ 7.003043] systemd[1]: Mounted Debug File System.
[ 7.003944] systemd[1]: Mounted POSIX Message Queue File System.
[ 7.053278] lp: driver loaded but no devices found
[ 7.097062] ppdev: user-space parallel port driver
[ 7.301544] systemd[1]: Started Load Kernel Modules.
[ 7.316156] systemd[1]: Mounting FUSE Control File System...
[ 7.317113] systemd[1]: Starting Apply Kernel Variables...
[ 7.320741] systemd[1]: Mounted FUSE Control File System.
[ 7.346084] systemd[1]: Started Journal Service.
[ 12.482972] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
[ 12.865049] systemd-journald[249]: Received request to flush runtime journal from PID 1
[ 13.509733] ACPI Warning: SystemIO range 0x0000000000000428-0x000000000000042F conflicts with OpRegion 0x0000000000000400-0x000000000000047F (\PMIO) (20150930/utaddress-254)
[ 13.509745] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.509751] ACPI Warning: SystemIO range 0x00000000000011C0-0x00000000000011CF conflicts with OpRegion 0x0000000000001180-0x00000000000011E3 (\GPIO) (20150930/utaddress-254)
[ 13.509758] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.509761] ACPI Warning: SystemIO range 0x00000000000011B0-0x00000000000011BF conflicts with OpRegion 0x0000000000001180-0x00000000000011E3 (\GPIO) (20150930/utaddress-254)
[ 13.509768] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.509770] ACPI Warning: SystemIO range 0x0000000000001180-0x00000000000011AF conflicts with OpRegion 0x0000000000001180-0x00000000000011E3 (\GPIO) (20150930/utaddress-254)
[ 13.509777] ACPI: If an ACPI driver is available for this device, you should use it instead of the native driver
[ 13.509779] lpc_ich: Resource conflict(s) found affecting gpio_ich
[ 13.959587] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4
[ 14.183140] kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work properly. Using workaround
[ 14.703372] dcdbas dcdbas: Dell Systems Management Base Driver (version 5.6.0-3.2)
[ 15.554781] input: Dell WMI hotkeys as /devices/virtual/input/input9
[ 15.905234] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC269: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[ 15.905240] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[ 15.905243] snd_hda_codec_realtek hdaudioC0D0: hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
[ 15.905245] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0
[ 15.905247] snd_hda_codec_realtek hdaudioC0D0: inputs:
[ 15.905251] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x19
[ 15.905253] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18
[ 15.952201] input: HDA Intel MID Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 15.952300] input: HDA Intel MID Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 15.952675] input: HDA Intel MID HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[ 16.369490] media: Linux media interface: v0.10
[ 16.509082] Linux video capture interface: v2.00
[ 17.254476] uvcvideo: Found UVC 1.00 device Laptop_Integrated_Webcam_1.3M (0c45:6480)
[ 17.273387] wl: loading out-of-tree module taints kernel.
[ 17.273393] wl: module license 'MIXED/Proprietary' taints kernel.
[ 17.273395] Disabling lock debugging due to kernel taint
[ 17.276690] input: Laptop_Integrated_Webcam_1.3M as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4/1-1.4:1.0/input/input13
[ 17.276871] usbcore: registered new interface driver uvcvideo
[ 17.276874] USB Video Class driver (1.1.1)
[ 17.278501] wl: module verification failed: signature and/or required key missing - tainting kernel
[ 17.330064] wlan0: Broadcom BCM4315 802.11 Hybrid Wireless Controller 6.30.223.248 (r487574)
[ 17.332446] wl 0000:03:00.0 wlp3s0: renamed from wlan0
[ 17.556832] cfg80211: World regulatory domain updated:
[ 17.556837] cfg80211: DFS Master region: unset
[ 17.556839] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 17.556842] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.556845] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.556847] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.556850] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 17.556853] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 17.556855] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 17.556858] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.556860] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 21.308688] audit: type=1400 audit(1528470507.538:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/ubuntu-core-launcher" pid=625 comm="apparmor_parser"
[ 21.623559] audit: type=1400 audit(1528470507.854:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=621 comm="apparmor_parser"
[ 21.623571] audit: type=1400 audit(1528470507.854:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session//chromium" pid=621 comm="apparmor_parser"
[ 21.680192] audit: type=1400 audit(1528470507.910:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=622 comm="apparmor_parser"
[ 21.680202] audit: type=1400 audit(1528470507.910:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=622 comm="apparmor_parser"
[ 21.680208] audit: type=1400 audit(1528470507.910:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=622 comm="apparmor_parser"
[ 21.680215] audit: type=1400 audit(1528470507.910:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=622 comm="apparmor_parser"
[ 21.731800] audit: type=1400 audit(1528470507.962:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/cups-browsed" pid=629 comm="apparmor_parser"
[ 21.827568] audit: type=1400 audit(1528470508.054:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/sbin/ippusbxd" pid=631 comm="apparmor_parser"
[ 21.847444] audit: type=1400 audit(1528470508.074:11): apparmor="STATUS" operation="profile_load" profile="unconfined" name="webbrowser-app" pid=628 comm="apparmor_parser"
[ 22.344116] Adding 3001340k swap on /dev/sda5. Priority:-1 extents:1 across:3001340k FS
[ 36.321164] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 36.324656] IPv6: ADDRCONF(NETDEV_UP): enp4s0: link is not ready
[ 36.333007] r8169 0000:04:00.0 enp4s0: link down
[ 36.333052] IPv6: ADDRCONF(NETDEV_UP): enp4s0: link is not ready
[ 241.448933] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 241.453582] IPv6: ADDRCONF(NETDEV_UP): enp4s0: link is not ready
[ 241.462678] r8169 0000:04:00.0 enp4s0: link down
[ 241.462732] IPv6: ADDRCONF(NETDEV_UP): enp4s0: link is not ready
X:~$ /var/log/messages
bash: /var/log/messages: No such file or directory
X:~$ /var/log/messages
bash: /var/log/messages: No such file or directory
Update: 10/06/2018
Thank you George for your answer and for editing my previous entry.
Please find below the requested code.
X:~$ is -la~/.bash_history
-rw------- 1 X 684 Jun 9 22:58 /home/X/.bash_history
I appreciate any further help to resolve this.
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