Сборник примеров программ на bash

#!/bin/bash
attempts=$(($2+1))
## all working nodes
# {3..19} {22..24} {27..28} {30..38}
declare -a sc613='2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22 23 24 27 28 30 31 32 33 34 35 36 37 38'
# {3..19} {22.24}
declare -a sc619='3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 22 23 24'

function check_613() {
echo 'Проверка доступности хостов сети '$ip_h 'из '$(uname -n)
for (( count=1; count < $attempts; count++ )); do
echo '-----------[ step' $count'/'$(($attempts-1))' ]' $(date +%d.%m.%y) $(date +%H:%M) '---------'
  for ip in $sc613; do
      if ! [[ $(fping -qa ${ip_h}.${ip}) ]]; then
           echo ${ip_h}.${ip} is dead!
      fi
  done
done
}

function check_619() {
echo 'Проверка доступности хостов сети '$ip_h 'из '$(uname -n)
for (( count=1; count < $attempts; count++ )); do
echo '-----------[ step' $count'/'$(($attempts-1))' ]' $(date +%d.%m.%y) $(date +%H:%M) '---------'
  for ip in $sc619; do
      if ! [[ $(fping -qa ${ip_h}.${ip}) ]]; then
           echo ${ip_h}.${ip} is dead!
      fi
  done
done
}

function usage() {
echo 'Укажите номер VLAN (613 или 619) и кол-во попыток!'
}

if [ $# != 2 ]; then
   usage
else
   case $1 in
      613)
      ip_h="10.55.126"
      check_613;;
      619)
      ip_h="172.17.5"
      check_619;;
      *)
      usage;;
   esac
fi

#!/bin/bash
scope=$2

case $scope in
   all)
        declare -a srvl=(cmp01 cmp02 cmp03 cph01 cph02 cph03 mon01 mon02 ctl01 ctl02 ctl03 s3f01 s3f02 s3f03);;
   ceph)
        declare -a srvl=(cph01 cph02 cph03);;
   s3)
        declare -a srvl=(s3f01 s3f02 s3f03);;
   ctl)
        declare -a srvl=(ctl01 ctl02 ctl03);;
   *)
   ;;
esac

echo ${srvl[@]}

if [ $# != 2 ]; then
      echo "payload OR scope not defined!"; exit 0
   else
     for srv in ${srvl[@]}; do
         echo $srv
         ssh $srv 'bash -s' < $1;
     done
fi

#!/bin/bash
# psi_go: Прогон сценариев ПСИ
# created during 21.01.2023
# aizaro@mail.ru

if [[ -z $1 ]]; then scmd=0; else scmd=$1; fi

declare -a psicmd
# filling command stack from file
readarray -t psicmd < .psi_cmd.lst

sumop=${#psicmd[@]} ## total operations
#for pp in ${psicmd[*]}; do echo $pp; done

function msg1() {
echo -e '\nВыполняем команду'$1
}

function msg2() {
echo -e 'Результат выполнения команды: \n'
}

function step_mark() {
read -p ':---------------->'
}

for (( step=$scmd; step < $sumop; step++ )); do
msg1
echo '# '$step': '${psicmd[$step]}
step_mark
msg2
#${psicmd[$step]} > /tmp/result_psi ## not worked with for
echo ${psicmd[$step]} > /tmp/psi_cmd && /bin/bash /tmp/psi_cmd
cat /tmp/result_psi
done

#!/bin/bash

export delim=" ; "
serverport=${1}
export serverport
echo "#${serverport}"
date_today=$(date +%F)

datediff() {
  d1=$(date -d "$1" +%s)
  d2=$(date -d "$2" +%s)
  echo $(( (d1 - d2) / 86400 )) days
}

export -f datediff

sslscan() {
local sp=${1}
tls_content=$(echo "Q" | openssl s_client -showcerts -connect ${serverport} 2>&1)
if [[ "$?" == 0 ]]; then
   tls_errors=$(echo "${tls_content}" | grep -i error )
   tls_cert_subject=$(echo "${tls_content}" | openssl x509 -noout -subject )
   tls_cert_issuer=$(echo "${tls_content}" | openssl x509 -noout -issuer )
   tls_cert_cn=$(echo "${tls_content}" | openssl x509 -noout -subject | sed -e "s/.*CN=\([^\/]*\).*/\1/" )
   tls_cert_dates=$(echo "${tls_content}" | openssl x509 -noout -dates )
   tls_cert_notafter_date=$(echo "${tls_cert_dates}" | grep notAfter |sed -e "s/notAfter=//" | tr -d '\n')
   tls_cert_notbefore_date=$(echo "${tls_cert_dates}" | grep notBefor |sed -e "s/notBefore=//" | tr -d '\n')
   tls_cert_datediff=$(datediff "${tls_cert_notafter_date}" "${date_today}")
   echo -n "${serverport} ${delim} SSL"
   echo -n " ${delim} CN:"
   echo -n " ${tls_cert_cn}"
   echo -n " ${delim} Subject:"
   echo -n " ${tls_cert_subject}"
   echo -n " ${delim} Issuer:"
   echo -n " ${tls_cert_issuer}"
   echo -n " ${delim} notBefore:"
   echo -n " ${tls_cert_notbefore_date}"
   echo -n " ${delim} notAfter:"
   echo -n " ${tls_cert_notafter_date}"
   echo -n " ${delim} DaysUntilExpiration:"
   echo -n " ${tls_cert_datediff}"
   echo -n " ${delim} Errors:"
   echo -n " ${tls_errors}"
   echo
else
   tls_errors=$(echo "${tls_content}" | tr '\n' '/' | tr ' ' '_' )
   status="ERROR: ${tls_errors}"
   echo -n "${serverport} ${delim} ${status}"
   echo 
fi
}

export -f sslscan

timeout 3 bash -c "sslscan ${serverport}"

if [[ $? != 0 ]]; then
  echo -n "${serverport} ${delim} ERROR: CONNECTION_TIMED_OUT"
  echo
fi

#!/bin/bash
for cc in $(lxc-ls -1 --active); do
   lxc-stop -n $cc
   tar cvfj /home/user/backup/lxc/${cc}-$(date +%y%m%d%H).tbz /var/lib/lxc/$cc
   lxc-start -n $cc
done

# cat /usr/local/bin/watcher
#!/bin/bash
SRV=$1
MIG=$(date +%y%m%d%H%M)

function srv_start() {
       if ! [[ -z $(pgrep certbot) ]]; then
            echo "Certbot lanched now"
            for PCB in $(pgrep certbot); do
               kill -9 $PCB
            done
        fi
  /usr/sbin/service $SRV start
  echo ${MIG}: ${SRV} restart >> /var/log/${SRV}/restart.log
}

if [ $# = 0 ]; then
   echo 'Usage '${0}' <service_name>'; exit 0
fi


if [ -e /run/${SRV}.pid ]; then
         echo ${SRV}: state OK
     else
        srv_start
fi