Compress command output by piping to bzip2
Dom asked: Is it possible to pipe a command output to bzip2 for compression to an output file? Something along the lines of: cat somefile.txt | bzip2 –output somefile.txt.bz2 My …
Enough memory but OOM killer invoked?
MikeSkril asked: It has been a long time since my old friend the OOM killer came to visit me. Now it is coming by once a week and I cannot …
How to share/persist a SSH connection from a shell script that runs multiple commands
Justin asked: I have a shell script that connects via SSH to the same host (my-server) and runs a variety of commands mixed throughout the script. For example: ssh -o …
Multiple instances of CRON_TZ inside a cron file (CentOS)
Borsn asked: Is it possible to have multiple timezones in the /etc/crontab file, like below? CRON_TZ=Europe/Paris */20 * * * * root /home/user/script.sh >/dev/null 2>&1 */5 * * * * …
Unbound doesnt start
Aeris asked: after installing Unbound apt-get -y install unbound dnsutils su -c “unbound-anchor -a /var/lib/unbound/root.key” – unbound systemctl reload unbound apt-get -y install resolvconf echo “nameserver 127.0.0.1” >> /etc/resolvconf/resolv.conf.d/head I’m …
Can't read file even though permissions are correct
Adnidor asked: I have a dir with read permissions for ssl-cert: [email protected]:~/certs# ls -lah total 28K drwxr-x— 2 root ssl-cert 4.0K Oct 23 16:58 . drwx—— 7 root root 4.0K …
mysqldump via bash script failing with "No such file or directory"
Will Ashworth asked: This one’s driving me NUTS. Any help appreciated! $MYSQLDUMP –login-path=$HOST $DATABASE > “$BACKUP_DIR/${HOST}__${DATABASE}__${NOW}.sql”; I’ve confirmed that the binary $MYSQLDUMP (within the script) has a valid full path …
How to filter (out) certain output in bash
Taylor Halliday asked: I have a process that tails our AWS CloudWatch logs. It works great, except for the fact that every line is prepended by the CloudWatch group and …
Will Ansible prevent the execution of 'rm -rf /' in a shell script
aroth asked: This is based upon this hoax question here. The problem described is having a bash script which contains something to the effect of: rm -rf {pattern1}/{pattern2} …which if …
Ansible & rbash
Álex Sáez asked: I want to manage a bunch of devices running /bin/rbash as the default shell with Ansible. The problem is that Ansible always tries to execute a list …