VirtualTam's bookmarks

61. autocomplete - Auto-complete command line arguments - Stack Overflow 2018-07-25

    tags: completion, programming/shell, programming/shell/bash, programming/shell/zsh

    [ permalink ]
62. colors - How do I pipe colored diff output to less? - Unix & Linux Stack Exchange 2018-07-24

    tags: color, diff, programming/shell

    [ permalink ]
63. unix - tail multiple files and grep the output - Stack Overflow 2018-07-19

    tags: grep, observability/logging, programming/shell, tail

    [ permalink ]
64. Docker - Command output formatting 2018-06-18

    tags: command-line, linux/container/docker, programming/shell

    [ permalink ]

    • https://docs.docker.com/engine/reference/commandline/ps/
    • https://www.katacoda.com/courses/docker/formatting-ps-output
    • https://container42.com/2016/03/27/docker-quicktip-7-psformat/
    • https://golang.org/pkg/text/template/
    • https://container-solutions.com/docker-inspect-template-magic/
65. What does {some strange unix command name} stand for? 2018-06-18

    tags: gnu, linux, programming/shell, unix

    [ permalink ]

    • https://www.reddit.com/r/linux/comments/8rwo6m/what_do_unix_command_names_stand_for/
    • http://wiki.c2.com/?PerlIsNotAnAcronym
66. shell - How can I use Bash syntax in Makefile targets? - Stack Overflow 2018-06-17

    tags: linux, make, programming/shell, programming/shell/bash, script

    [ permalink ]
67. Sed by Example 2018-05-24

    tags: linux, programming/shell, replace, script, sed, text

    [ permalink ]

    • https://www.funtoo.org/Sed_by_Example,_Part_1
    • https://www.funtoo.org/Sed_by_Example,_Part_2
    • https://www.funtoo.org/Sed_by_Example,_Part_3
    • http://sed.sourceforge.net/sedfaq.html
    • http://sed.sourceforge.net/sed1line.txt
    • https://docs.python.org/dev/howto/regex.html
68. Awk by Example - An intro to the great language with the strange name 2018-05-24

    tags: linux, programming/awk, programming/shell, script, text

    [ permalink ]

    • https://www.funtoo.org/Awk_by_Example,_Part_1

    • https://www.funtoo.org/Awk_by_Example,_Part_2

    • https://www.funtoo.org/Awk_by_Example,_Part_3

    • http://www.faqs.org/faqs/computer-lang/awk/faq/

    • http://sparky.rice.edu/~hartigan/awk.html

69. explainshell.com - match command-line arguments to their help text 2018-05-14

    tags: command-line, linux, man, programming/python, programming/shell, programming/shell/bash

    [ permalink ]

    • https://github.com/idank/explainshell
    • https://github.com/idank/bashlex
70. Cscope - a developer's tool for browsing source code 2018-04-22

    tags: code, editor, linux, programming/c, programming/c++, programming/shell

    [ permalink ]

    • http://cscope.sourceforge.net/large_projects.html
    • http://cscope.sourceforge.net/cscope_vim_tutorial.html
71. Centos/RHEL 7 - Fix LVM boot issues after migration from ESXi to VirtualBox 2018-04-20

    tags: boot, bootloader/grub, filesystem, filesystem/lvm, fstab, linux, linux/centos, linux/kernel, linux/red-hat

    [ permalink ]

    Here are the steps I used to migrate a CentOS 7 VM from (presumably?) an ESXi server, to a local VirtualBox environment.

    The LVM volumes were not detected at boot, and after the boot timeout, the OS fell back to the Dracut emergency shell.

    • get a CentOS minimal installation CD
    • check the VM's resources and peripherals:
      • ensure there are no floppy drives (!)
      • setup CPU and RAM resources
      • check virtual drives
      • add an SCSI optical drive if needed
    • optional: convert the virtual drive images from VMDK to VDI
    • mount the CentOS installation disc
    • boot on the installation disc:
      • select "Troubleshooting", then "Rescue"
      • let the rescue utility detect filesystems and mountpoints
    • $ chroot to the detected environment
    • backup files:
      • /etc/fstab
      • /boot/grub/grub.cfg
    • under /boot, backup the initrd and initramfs for the current configuration (these will be overwritten)
    • compare the current /etc/fstab with the output of $ lsblk and $ blkid
    • if needed, manually edit /etc/fstab to use the appropriate block device UUIDs, identifiers and mountpoints
    • regenerate GRUB configuration:
      • $ grub2-mkconfig -o /boot/grub2/grub.cfg
    • if needed, reinstall GRUB:
      • $ grub-install /dev/sda
    • rebuild initrd:
      • $ mkinitrd --force /boot/<initrd_image> <kernel_version>
    • rebuild initramfs:
      • $ dracut --force <kernel_version>
    • exit the chroot
    • unmount the installation disc
    • reboot
    • optional but highly recommended: cross your fingers
    • ...
    • profit!
72. Dracut emergency shell 2018-04-20

    tags: filesystem, filesystem/lvm, linux, linux/kernel

    [ permalink ]

    • https://superuser.com/questions/1244536/dracut-emerg-shell-mount-lvm2-volume
    • https://unix.stackexchange.com/questions/207593/how-to-make-lvms-at-available-boot-kernel-panic-dracut-cannot-find-logical-vo
    • https://serverfault.com/questions/893721/centos7-dracut-lvm-command-not-found
    • https://www.novell.com/coolsolutions/appnote/19386.html
    • https://fedoraproject.org/wiki/How_to_debug_Dracut_problems
    • https://kb.vmware.com/s/article/1002402
    • https://forums.fedoraforum.org/showthread.php?294909-Need-dracut-emergency-shell-help-regenerate
73. gron: Make JSON greppable! 2018-04-10

    tags: grep, programming/json, programming/shell

    [ permalink ]
74. Multitail 2018-04-05

    tags: color, linux, observability/logging, programming/shell

    [ permalink ]
75. termite: A keyboard-centric VTE-based terminal, aimed at use within a window manager with tiling and/or tabbing support. 2018-04-05

    tags: linux, programming/shell, terminal, window-manager/tiling

    [ permalink ]
76. How to list containers in Docker? - Stack Overflow 2018-04-04

    tags: linux/container, linux/container/docker, programming/shell, script

    [ permalink ]

    For scripting:

    1$ docker ps -aq
    

    E.g.:

    1$ docker stop $(docker ps -aq)
    

77. Turning off the pager in git for the stash command only - Stack Overflow 2018-03-25

    tags: pager, programming/shell, source-code-management/git

    [ permalink ]

    • https://stackoverflow.com/questions/18126637/git-no-pager-for-specific-commands
78. GitHub - colis-anr/morbig: A trustworthy parser for POSIX shell 2018-01-29

    tags: grammar, linux, parser, programming/shell, static-analysis/lint, unix

    [ permalink ]

    • http://gallium.inria.fr/~fpottier/menhir/
    • https://www.irif.fr/en/logiciels/index
    • https://fosdem.org/2018/schedule/event/code_parsing_posix_s_hell/
79. Understanding sed – Practical Guide – Developers Area 2018-01-19

    tags: command-line, linux, programming/regular-expressions, programming/shell, text, unix

    [ permalink ]
80. neilpa/cmd-colors-solarized: Solarized color settings for Windows command prompt 2018-01-13

    tags: linux/ubuntu, microsoft/windows, programming/shell/bash, solarized, theme

    [ permalink ]

    • https://superuser.com/questions/1128269/bash-on-windows-10-is-there-way-to-apply-themes-like-solarized-to-cmd