Commands by sentinel (1)

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List top 100 djs from https://djmag.com/top100djs

Scan Subnet for IP and MAC addresses

mysqlcheck --defaults-file=/etc/mysql/debian.cnf --auto-repair --all-databases

Press ctrl+r in a bash shell and type a few letters of a previous command
In the sample output, I pressed ctrl+r and typed the letters las. I can't imagine how much typing this has saved me.

Install pip with Proxy
Installs pip packages defining a proxy

Show max lengths of all fields in a pipe delimited file with header row

Undo mkdir -p new/directory/path
Removes all directories on given path, working from right to left, and stops when reaching a non-empty directory Counterpart of $ mkdir -p new/directory/path Shortcut (must be issues as next command immediately after mkdir): $ ^mk^rm ( see http://www.commandlinefu.com/commands/view/19/runs-previous-command-but-replacing )

Show directories in the PATH, one per line
The output of "echo $PATH" is hard to read, this is much easier. The parentheses ensure that the change to the input field separator (IFS) only happens the the sub shell and not affecting the current shell.

run command on a group of nodes in parallel

Colorize matching string without skipping others
this is useful to highlight only some code without losing other lines (eg. software, logs, scripts)


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