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Sync date & time behind a proxy
person cloud · link
HowTo
Linux
Script
Last update
2026-03-06
2026
03-06
« — »

/root/ntp-proxy.sh

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#!/bin/bash
http_proxy=http://xxx:yyy
https_proxy=http://xxx:yyy
date -s "$(curl -H'Cache-Control:no-cache' -sI https://reachable-site.com | grep -i '^Date:' | cut -d' ' -f3-6)Z"

root crontab

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# m h  dom mon dow   command
  0 8    *   *   *   /root/ntp-proxy.sh > /dev/null 2>&1

Source: superuser.com


~~~ * ~~~

Midnight Commander config & shortcuts
person cloud · link
Linux
Reference
Tools
Last update
2026-02-23
2026
02-23
«MC: the "Midnight Commander".
Norton Commander clone/powerup»

Panel Functions

Keys Function
TAB switch focus between panels
Alt ? open search (find) dialog
Alt s incremental search (press again for the next match)
Alt i sync panels directories on current one
Alt t switch among panel layouts in loop
Ctrl r refresh active panel
Ctrl u swap panels

Common Functions

Keys Function
Insert toggle mark on selected file
* toggle marked files
+ marks files based on a pattern
- unmarks files based on a pattern
Shift Down mark file and move to the next entry
Shift Up mark file and move to the previous entry
Shift F5 copy single file
Shift F6 move single file
Ctrl x c open chmod dialog for marked file
Ctrl x o open chown dialog for marked file
Ctrl x s make a symbolic link of the current file

Shell functions

Keys Function
Alt Enter copy selected filename in command line
Ctrl Shft Enter copy full path of selected file in the command line
Alt H shows command line history

Useful settings

Here is my configuration (press F9 to navigate the menu):

Option menu Option
Configuration check_box Verbose operation
check_box Compute totals
check_box Auto save setup
Layout check_box_outline_blank Hintbar visible
Panel options check_box_outline_blank Show hidden files
check_box Auto save panels setup
check_box File highlight > File types
Appearance theme: modarin256-thin, xoria256, darkfar


Left/Right menu Option
Listing format check_box User defined > half mark type name | bsize:4 | mode:3 | mtime
Listing format check_box User mini status > half name

File actions

  • Menu > Command > Edit extension file
  • set mpv for video files
  • set geeqie for images
  • set mcomix for cbz/cbr

~/.config/mc/ini

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[Misc]
timeformat_recent=%m/%d %H:%M
timeformat_old=%Y %m %e

Source: Klimer, MC HP, Kayxl, ArchLinux forum, SU time format


~~~ * ~~~

HAML syntax highlighting
person cloud · link
Configuration
Editor
Rails
Last update
2026-02-22
2026
02-22
«jedit, geany»

jEdit

  1. Append in ~/.jedit/modes/catalog:
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<MODE NAME="haml" FILE="haml.xml" FILE_NAME_GLOB="*.{haml,haml.erb}" />
  1. put the syntax file from wolfman's blog in ~/.jedit/modes:
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<?xml version="1.0"?>
<!DOCTYPE MODE SYSTEM "xmode.dtd">
<!--
Edit mode for HAML ~ Version 1.1 - 2006-12-5 by Jim Morris
  1. Place this file in ~/.jedit/modes/haml.xml
  2. Append in ~/.jedit/modes/catalog:
     <MODE NAME="haml" FILE="haml.xml" FILE_NAME_GLOB="*.{haml,haml.erb}" />
Auto indents after lines starting with % with no trailing normal text
(eg. %label{:id => 1}) or starting with "-".
-->
<MODE>
  <PROPS>
    <PROPERTY NAME="lineComment" VALUE="^\s*/" />
    <PROPERTY NAME="noTabs" VALUE="true"/>
    <PROPERTY NAME="wrap" VALUE="none"/>
    <PROPERTY NAME="tabSize" VALUE="2"/>
    <PROPERTY NAME="indentSize" VALUE="2"/>
    <PROPERTY NAME="folding" VALUE="indent"/>
    <PROPERTY NAME="indentNextLines" VALUE="\s*(((%\S+)((\{.+\})|(\[.+\]))?)|(-\s+.*))" />
    <PROPERTY NAME="noWordSep" VALUE="_-"/>
  </PROPS>

  <RULES IGNORE_CASE="TRUE">
    <MARK_FOLLOWING TYPE="MARKUP">%</MARK_FOLLOWING>
    <MARK_FOLLOWING TYPE="KEYWORD2">#</MARK_FOLLOWING>
    <MARK_FOLLOWING TYPE="KEYWORD3">.</MARK_FOLLOWING>

    <EOL_SPAN TYPE="LITERAL3" AT_WHITESPACE_END="TRUE" DELEGATE="ruby::MAIN">=</EOL_SPAN>
    <EOL_SPAN TYPE="LITERAL2" AT_WHITESPACE_END="TRUE" DELEGATE="ruby::MAIN">-</EOL_SPAN>
    <EOL_SPAN TYPE="LITERAL2" AT_WHITESPACE_END="TRUE" DELEGATE="ruby::MAIN">~</EOL_SPAN>

    <SPAN TYPE="LITERAL1" NO_LINE_BREAK="TRUE">
      <BEGIN>"</BEGIN>
      <END>"</END>
    </SPAN>
    <SPAN TYPE="LITERAL1" NO_LINE_BREAK="TRUE">
      <BEGIN>'</BEGIN>
      <END>'</END>
    </SPAN>
    <SPAN TYPE="LITERAL4" NO_LINE_BREAK="TRUE" DELEGATE="ruby::MAIN">
      <BEGIN>{</BEGIN>
      <END>}</END>
    </SPAN>
  </RULES>
</MODE>

Geany

  1. register the new Haml filetype in ~/.config/geany/filetype_extensions.conf
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[Extensions]
Haml=*.haml;*.haml.erb

[Groups]
Markup=Haml;
  1. add the syntax config in ~/.config/geany/filedefs/filetypes.Haml.conf
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# https://geany.org/manual/index.html#filetype-configuration
[styling=Ruby]

[settings]
# https://github.com/geany/geany/tree/master/scintilla/lexilla/lexers
lexer_filetype=Ruby
extension=haml.erb

[indentation]
type=0
width=2

~~~ * ~~~

Torta ricotta e pere
person cloud · link
Pere
Ricette
Ricotta
Torte
Last update
2026-02-21
2026
02-21
«TODO»
Cover original

~~~ * ~~~

gitconfig global file and tools
person cloud · link
Dev
Git
Tools
Last update
2026-02-12
2026
02-12
« — »
  • Setup a main config file in /etc/gitconfig or ~/.gitconfig:
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[alias]
  co = checkout
  ci = commit
  st = status
  df = diff --staged
  bd  = branch --edit-description
  bds = !GIT_EDITOR=cat git branch --edit-description | grep -v "^#"
  pom = push origin master
  lom = pull origin master
  logs = log --show-signature
  list-files  = ls-tree --name-only -r HEAD
  list-files2 = ls-tree --full-tree -r HEAD
  hist = log --pretty=format:\"%h %ad | %s%d [%an]\" --date=short
  histg = log --pretty=format:\"%h %ad | %s%d [%an]\" --graph --date=short
  undoci = reset --soft HEAD^
  redoci = commit -c ORIG_HEAD
  undo-merge = reset --hard HEAD~1
  stash-unapply = !git stash show -p | git apply -R
  stash-diff = stash show -p
  # drop all local commits and align with origin/master
  reset-om = reset --hard origin/master
  # side-by-side diff commands (install ydiff command)
  dfs   = !git diff  --staged | ydiff -s -w 0 -t 2 --wrap
  diffs = !git diff           | ydiff -s -w 0 -t 2 --wrap
  # show root dir - https://stackoverflow.com/a/957978/13231285
  root = rev-parse --show-toplevel
[user]
  name  = Alberto Cavalin
  email = acavalin@users.noreply.github.com
[credential "https://github.com"]
  username = acavalin
[core]
  autocrlf = input
  safecrlf = true
  excludesfile = ~/.gitignore_global
  # https://stackoverflow.com/a/37293198/13231285
  hooksPath = ~/.git-hooks
[push]
  default = current
  autoSetupRemote = true
[color]
  ui = true
[pull]
  ff = only
  rebase = false
[init]
  defaultBranch = main
[diff]
  algorithm = histogram
  • Quick config commands
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# Better diff algorithm
git config --global diff.algorithm histogram

# Auto set upstream on push
git config --global push.autoSetupRemote true

# Enable adding CR/LF files
git config --global core.autocrlf false
git config --global core.safecrlf false
  • Setup the ignore list in ~/.gitignore_global:
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# jEdit temporary files
*.marks
\#Untitled-*#

# Rails files (db, log, temp, cfg)
/db/*.sqlite3
/db/*.sqlite3-journal
/log/*.log
/log/*.gz
/tmp
Gemfile.lock
/config/database.yml

.DS_Store
nohup.out

  • Use a side-by-side colored diff tool

  • Enhance the terminal experience:

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    [ -f "$HOME/.git-completion.bash" ] && source "$HOME/.git-completion.bash"
[ -f "$HOME/.git-prompt.sh" ] && source "$HOME/.git-prompt.sh"
export PROMPT_COMMAND='__git_ps1'

  • Install some good interfaces for git:

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apt-get install tig  # ncurses-based text-mode interface
apt-get install gitg # gtk visual repository viewer
  • Look for a file in a project:
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grep -E --color=always \
  --exclude-dir=".git" --exclude-dir="log" --exclude-dir="tmp" \
  --exclude="#*#" \
  -rin search_term . | less -R
  • Make a single file full backup
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git bundle create project.bundle --all # backup
git clone project.bundle dir           # restore

On the first pull/push saves user/pass in plaintext in ~/.git-credentials.

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# run this to configure the local repository
git config credential.helper store

Source: cache username/pass via StackOverflow and GitHub; dev.to git terminal, side-by-side diff, add CR/LF files, dev.to

See also: When to Use Git Reset, Git Revert & Git Checkout