Linux Guru

Install Docker-compose on CentOs7 Linux.

yum install -y epel-release

yum install -y python-pip

pip install --upgrade pip

pip install docker-compose

pip install backports.ssl_match_hostname --upgrade

Also need to run :
pip install six --upgrade


Checking :
[root@slaveserver ~]# docker-compose -v
docker-compose version 1.15.0, build e12f3b9
[root@slaveserver ~]#

Run docker-compose help for more command-line options.

[root@slaveserver ~]#docker-compose help
Define and run multi-container applications with Docker.

Usage:
  docker-compose [-f <arg>...] [options] [COMMAND] [ARGS...]
  docker-compose -h|--help

Options:
  -f, --file FILE             Specify an alternate compose file (default: docker-compose.yml)
  -p, --project-name NAME     Specify an alternate project name (default: directory name)
  --verbose                   Show more output
  -v, --version               Print version and exit
  -H, --host HOST             Daemon socket to connect to

  --tls                       Use…

If a careless sysadmin executes this command on your linux server  chmod 444 /bin/chmod- what do you do to fix this?

Solution !


This command  will fix it if you are root user, Most unix and linux based OS's have perl installed and available by default.

#perl -e 'chmod 0755, "/bin/chmod";'