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| Line 49: | Line 49: | ||
==Lines Match Between== | ==Lines Match Between== | ||
<source lang='bash' highlight=' | <source lang='bash' highlight='6-9' line> | ||
bash <<'EOF' > academia_keycloak_staging.sql | bash <<'EOF' > academia_keycloak_staging.sql | ||
# suppress stdout | # suppress stdout | ||
| Line 68: | Line 68: | ||
echo '$STDOUT$ */' | echo '$STDOUT$ */' | ||
EOF | EOF | ||
</source> | |||
---- | |||
<source lang='bash' start='20' highlight='20-23' line> | |||
sed '/^\/\* \$STDOUT\$$/,/^\$STDOUT\$ \*\/$/{/^\/\* \$STDOUT\$$/!{/^\$STDOUT\$ \*\/$/!d}}' -i academia_keycloak_staging.sql | sed '/^\/\* \$STDOUT\$$/,/^\$STDOUT\$ \*\/$/{/^\/\* \$STDOUT\$$/!{/^\$STDOUT\$ \*\/$/!d}}' -i academia_keycloak_staging.sql | ||
sed -z 's|\n/\* $STDOUT$\n$STDOUT$ \*/||g' -i academia_keycloak_staging.sql | sed -z 's|\n/\* $STDOUT$\n$STDOUT$ \*/||g' -i academia_keycloak_staging.sql | ||
Revision as of 10:42, 5 January 2023
sudo systemctl stop firewalld
sudo systemctl stop ipchains
sudo systemctl stop iptables
sudo systemctl restart jira
sudo systemctl restart atlbitbucket
# clear all
history -c
history -w
# delete line
history -d 2013
history -w
for i in {1..50};do \
history -d 2013;done;\
history -w
count=`wc -l ~/.bash_history|awk '{print $1+1}'`;start_line=$(($count-10));\
for ((line=$count;line>=$start_line;--line));do history -d $line;done;\
history -w
command -v __git_ps1 >/dev/null 2>&1 || { echo >&2 "__git_ps1 not installed";}
hash __git_ps1 >/dev/null 2>&1 || { echo >&2 "__git_ps1 not installed";}
type __git_ps1 >/dev/null 2>&1 || { echo >&2 "__git_ps1 not installed";}
# check by using if else conditional block
if hash __git_ps1 2>/dev/null;then echo '__git_ps1';\
else echo 'no __git_ps1';fi
Bash Arrays
declare -ax HADOOP_SCHEDULERS=(dev prod);\
declare -Ax MINMAX_CAPACITIES=([dev]='50 50' [prod]='50 70');\
for HADOOP_SCHEDULER in ${HADOOP_SCHEDULERS[@]};do \
IFS=' ' read -r -a MINMAX_CAPACITY <<< "${MINMAX_CAPACITIES[${HADOOP_SCHEDULER}]}";\
echo "${HADOOP_SCHEDULER} » Min » ${MINMAX_CAPACITY[0]} » Max » ${MINMAX_CAPACITY[1]}";\
done
Lines Match Between
bash <<'EOF' > academia_keycloak_staging.sql
# suppress stdout
echo '/* $STDOUT$'
echo "${HOSTNAME}${HOME}"
ssh -qt gtw.vpc.chorke.org <<'EOF_00'
echo "${HOSTNAME}${HOME}"
ssh -qt rds.vpc.chorke.org <<'EOF_01'
echo "${HOSTNAME}${HOME}"
echo '$STDOUT$ */'
pg_dump -U postgres academia_keycloak_staging
# suppress stdout
echo '/* $STDOUT$'
EOF_01
EOF_00
echo '$STDOUT$ */'
EOF
sed '/^\/\* \$STDOUT\$$/,/^\$STDOUT\$ \*\/$/{/^\/\* \$STDOUT\$$/!{/^\$STDOUT\$ \*\/$/!d}}' -i academia_keycloak_staging.sql
sed -z 's|\n/\* $STDOUT$\n$STDOUT$ \*/||g' -i academia_keycloak_staging.sql
sed -z 's|/\* $STDOUT$\n$STDOUT$ \*/\n||g' -i academia_keycloak_staging.sql
gzip academia_keycloak_staging.sql
Knowledge
sudo apt install neofetch neofetch --cpu-brand off neofetch
# add the new key(s) to known_hosts ssh-keyscan -H git.academia.chorke.org >> ~/.ssh/known_hosts # remove the old key(s) from known_hosts ssh-keygen -R git.academia.chorke.org
cat /etc/os-release