Commands by batandwa (6)


  • 3
    cat databases.txt | while read db; do docker exec $container_name bash -c "mysqldump -uroot -p\$MYSQL_ROOT_PASSWORD ${db}" | gzip -9 > $HOME/backups/${db}_`date +%Y%m%d_%H%M%S`.sql.gz; done
    batandwa · 2018-09-02 15:23:32 0
  • Creates a git repository in a predefined location. Show Sample Output


    -3
    git-createrepo() { repos_path='/srv/git/'; mkdir $repos_path$1; cd $repos_path$1; git init --bare; echo "Repository location: ssh://[email protected]`cat /etc/HOSTNAME``pwd`"; cd -; }
    batandwa · 2013-05-09 21:44:24 0
  • Watches for file modifications in the current directory and tails the file.


    -4
    watch 'ls -tr1 | tail -n1 | xargs tail'
    batandwa · 2013-05-09 11:37:59 0
  • Monitors the current directory for changes to HAML files and converts them to HTML. Show Sample Output


    0
    while true; do filechanged=$(inotifywait -e close_write,moved_to --format "%w%f" .); haml $filechanged -q --no-escape-attrs > ${filechanged/.haml/.html}; done
    batandwa · 2013-05-01 21:15:26 1

  • 0
    git diff --name-only --diff-filter=AMXTCR HEAD~2 HEAD | xargs -l -I{} cp --parents --verbose "{}" target_dir
    batandwa · 2013-02-11 08:12:40 0

  • 0
    ngrep host 192.168.1.6 -O $(date +%Y%m%d_%H%M%S).pcap > $(date +%Y%m%d_%H%M%S).txt
    batandwa · 2012-10-03 13:09:19 0

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disable caps lock
a quick one-line way to disable caps lock while running X.

Open a file at the specified line
You may also use +line:column syntax.

Port scan a range of hosts with Netcat.
Simple one-liner for scanning a range of hosts, you can also scan a range of ports with Netcat by ex.: nc -v -n -z -w 1 192.168.0.1 21-443 Useful when Nmap is not available:) Range declaration like X..X "for i in {21..29}" is only works with bash 3.0+

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Print a row of characters across the terminal
Print a row of characters across the terminal. Uses tput to establish the current terminal width, and generates a line of characters just long enough to cross it. In the example '#' is used. It's possible to use a repeating sequence by dividing the columns by the number of characters in the sequence like this: $ seq -s'~-' 0 $(( $(tput cols) /2 )) | tr -d '[:digit:]' or $ seq -s'-~?' 0 $(( $(tput cols) /3 )) | tr -d '[:digit:]' You will lose chararacters at the end if the length isn't cleanly divisible.

Prepend a text to a file.
The original command is great, but I often want to prepend to every line.

Translate your terminal into Swedish Chef
Bork, bork, bork! To keep it short, the first terminal line doesn't show a prompt.

Find the package that installed a command

resume other user's screen session via su, without pty error
Normally, if you su to another user from root and try to resume that other user's screen session, you will get an error like "Cannot open your terminal '/dev/pts/0' - please check." This is because the other user doesn't have permission for root's pty. You can get around this by running a "script" session as the new user, before trying to resume the screen session. Note you will have to execute each of the three commands separately, not all on the same line as shown here. Credit: I found this at http://www.hjackson.org/blog/archives/2008/11/29/cannot-open-your-terminal-dev-pts-please-check.


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