Commands tagged bash (821)

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nagios wrapper for any script/cron etc
use w/ check_freshness. passes the last line of output and exit code to nagios via nsca

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"

Find non-standard files in mysql data directory
These files should be removed to keep the size of data directory under control. If you exclude the known important file types like frm and MYD then what-ever is left can be either moved or deleted.

List open IPv4 connections

Count the number of pages of all PDFs in current directory and all subdirs, recursively

import gpg key from the web
imports a public key from the web. I know this by head.. but useful nevertheless

check open ports without netstat or lsof

quickly backup or copy a file with bash
less symbols, tab completion. including # export SIMPLE_BACKUP_SUFFIX="_`date +%F`" in your .bashrc provides you to easily timestamp your files

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

echo unicode characters


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