Shell scripting: How to verify a command actually exists on the system

Published on December 7th 2023 - Listed in Linux Shell Bash Coding - 2 comments

How to use SFTP password authentication in a Bash script using non-interactive (batch) mode

Published on December 23rd 2022 - Listed in Coding Bash Linux Shell - 0 comments

The problem using output redirection >/dev/null as a variable in Bash Shell script

Published on December 22nd 2022 - Listed in Coding Bash Linux Shell - 0 comments

How to do bulk/mass changes on DNS records in PowerDNS with MySQL backend

Published on March 2nd 2021 - Listed in DNS PowerDNS Linux Coding Shell MySQL Database - 0 comments

How to use sed to append quote characters around a DNS TXT record

Published on February 24th 2021 - Listed in DNS PowerDNS Linux Coding Shell - 0 comments

Terminator terminal broadcast all option broadcasts input to all other terminator windows

Published on November 25th 2020 - Listed in Shell Linux - 0 comments

How to match case insensitive (uppercase and lower case) strings with regular expression in Bash

Published on September 4th 2020 - last updated on November 25th 2021 - Listed in Coding Bash Linux Shell - 0 comments

How to remove the first word of a line in Bash - comparing awk vs. cut vs. sed

Published on September 4th 2020 - last updated on August 4th 2021 - Listed in Coding Bash Linux Shell - 3 comments

Installing (compiling) jshon with libjansson on an old Linux (SLES 10)

Published on February 28th 2020 - Listed in Shell Linux - 0 comments

Mass file renaming in Bash based on search/replace or regular expressions

Published on August 19th 2019 - last updated on January 17th 2024 - Listed in Bash Linux Shell - 0 comments

Terminator terminal suddenly inserting each character twice when broadcasting to multiple windows

Published on June 3rd 2019 - Listed in Linux Internet Shell - 24 comments

Regex != regex in sed (or: replacing digits in sed)

Published on December 14th 2018 - Listed in Shell Linux Coding - 0 comments

Another way to append a text in sed using ampersand

Published on August 15th 2018 - Listed in Linux Shell Bash Coding - 3 comments

Retrieving a value from XML document in Linux Bash

Published on July 24th 2018 - last updated on November 12th 2020 - Listed in Monitoring Linux Icinga Shell Coding - 0 comments

Bash: date -d 1 month ago still shows the same month

Published on March 29th 2018 - Listed in Linux Shell Bash Coding - 0 comments

Bash: Why is a multi-line output saved as one line in a variable?

Published on March 26th 2018 - Listed in Linux Shell Bash Coding - 6 comments

How to retrieve values from json output in Bash

Published on April 29th 2016 - last updated on October 15th 2021 - Listed in Linux Coding Shell - 0 comments

awk: print last few elements of a line

Published on October 16th 2015 - Listed in Linux Coding Shell - 0 comments

Read or count number of lines of an Excel xlsx file in Linux on the cli

Published on July 29th 2015 - Listed in Linux Perl Shell Windows Coding Office - 2 comments

Permission denied error on /root/.bash_profile when running su command

Published on November 25th 2014 - Listed in Linux Shell - 1 comments

awk issue when trying to sort variables with same values

Published on September 29th 2014 - Listed in Linux Shell Coding - 0 comments

Are there any shellshock attacks (in Apache access logs)?

Published on September 26th 2014 - Listed in Hacks Linux Shell Apache - 1 comments

Use bash to compare remote cpu load and print lowest value of array

Published on August 14th 2014 - Listed in Linux Shell Coding - 0 comments

How to remove a newline character of every second line in bash

Published on April 1st 2014 - Listed in Linux Shell Unix Coding - 0 comments

Reminder: Do not start with an integer for a variable name in Bash

Published on March 31st 2014 - Listed in Shell Linux Unix Coding Bash - 0 comments

Using date in a cronjob (and solve error grandchild failed error)

Published on December 13th 2013 - last updated on April 29th 2022 - Listed in Linux Shell - 0 comments

OTRS migration to another server; what to look out for

Published on October 29th 2013 - Listed in OTRS Linux Unix Shell - 5 comments

Linux/Unix seq: Add a zero digit in front of 1-9

Published on October 7th 2013 - Listed in Linux Shell Unix Coding - 2 comments

Looking for tcpdump on Solaris? Use snoop!

Published on July 12th 2013 - Listed in Linux Solaris Shell Network Unix - 1 comments

YUM and DNF vs. Zypper vs. APT, RPM vs. dpkg command comparison and cheat sheet

Published on June 12th 2013 - last updated on March 5th 2024 - Listed in Linux Shell - 2 comments

How to monitor qmail mail queue (check_mailq alternative)

Published on April 29th 2013 - Listed in Nagios Linux Shell Mail Monitoring - 2 comments

Handling qmail queue

Published on April 19th 2013 - Listed in Linux Shell Mail - 1 comments

User quota disk space monitoring with check_disk

Published on March 18th 2013 - Listed in BSD Linux Shell Nagios Monitoring - 0 comments

grub2 boot issues after hdd replacement

Published on January 26th 2013 - Listed in Linux Shell Hardware Rant - 0 comments

SmartOS: svcs: Could not bind to repository server. Finding the cause.

Published on January 9th 2013 - Listed in Solaris Shell Database SmartOS Unix - 8 comments

Nagiosgraph not showing correct values for disk space

Published on December 19th 2012 - Listed in Nagios Linux Internet Shell Monitoring - 0 comments

Weird case: MySQL causing high disk IO when ZFS filesystem shrinks

Published on December 18th 2012 - Listed in BSD Database Shell MySQL ZFS Rant - 1 comments

Get MySQL Status - but only some values

Published on November 28th 2012 - Listed in Database Linux Shell MySQL - 2 comments

Analysis with dtrace: Filesystem is full although files were deleted

Published on October 18th 2012 - Listed in Linux Shell - 0 comments

Script to calculate/show percentage of current year passed

Published on August 13th 2012 - Listed in Linux PHP Shell Coding - 0 comments

Comparing SSH port forwarding Linux vs. Mac OS X

Published on July 21st 2011 - last updated on September 23rd 2020 - Listed in Linux Shell Macintosh - 0 comments

The tabulator in bash

Published on August 23rd 2010 - Listed in Linux Shell Coding - 0 comments

Why -while read line- does not work with stdout

Published on April 16th 2010 - Listed in Linux Shell Coding - 0 comments

Update of Nagios Plugin check_mysql_slavestatus.sh

Published on October 16th 2008 - Listed in Nagios Shell MySQL Monitoring Database - 0 comments

PHP make install on a Debian system with Apache 2

Published on October 13th 2008 - Listed in PHP Linux Shell Apache - 0 comments

New How To's

Published on June 4th 2008 - Listed in VMware PHP Linux Shell Internet - 0 comments

RSS feed

Blog Tags:

  AWS   Android   Ansible   Apache   Apple   Atlassian   BSD   Backup   Bash   Bluecoat   CMS   Chef   Cloud   Coding   Consul   Containers   CouchDB   DB   DNS   Database   Databases   Docker   ELK   Elasticsearch   Filebeat   FreeBSD   Galera   Git   GlusterFS   Grafana   Graphics   HAProxy   HTML   Hacks   Hardware   Icinga   Icingaweb   Icingaweb2   Influx   Internet   Java   KVM   Kibana   Kodi   Kubernetes   LVM   LXC   Linux   Logstash   Mac   Macintosh   Mail   MariaDB   Minio   MongoDB   Monitoring   Multimedia   MySQL   NFS   Nagios   Network   Nginx   OSSEC   OTRS   Office   PGSQL   PHP   Perl   Personal   PostgreSQL   Postgres   PowerDNS   Proxmox   Proxy   Python   Rancher   Rant   Redis   Roundcube   SSL   Samba   Seafile   Security   Shell   SmartOS   Solaris   Surveillance   Systemd   TLS   Tomcat   Ubuntu   Unix   VMWare   VMware   Varnish   Virtualization   Windows   Wireless   Wordpress   Wyse   ZFS   Zoneminder   


Update cookies preferences