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version: "3.1" | |
services: | |
wordpress: | |
image: wordpress | |
ports: | |
- 8080:80 | |
environment: | |
WORDPRESS_DB_PASSWORD: password |
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pngquant --ext .png --force *.png |
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pngquant --quality=70-99 input.png -o output.png |
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current_line=$(awk "NR==$current_row" "$FILE") |
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## wait for input | |
read -n 1 -s INPUT | |
# Valid input: | |
# | |
# m: next line / slide | |
# n: previous slide | |
# q: quit presenter | |
while [ "$INPUT" != "q" ]; do |
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# check if param 1 is not empty and if the file exists | |
if [ -z $1 ] ; then | |
echo "Param 1 missing. Must have a file to present." | |
exit | |
else | |
FILE="$1" | |
fi | |
if [ ! -f $FILE ] ; then | |
echo "File not found." |
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# declare a subrutine | |
kewl(){ | |
echo "kewl!"; | |
#access arguments in $1, $2 ... etc | |
echo "$1" | |
# declare a local variable | |
local LOCAL_IN = 1 | |
} |
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case $VAL in | |
( 1 ) echo "The val is 1" ; echo "Echoing out some more text" ;; | |
( 2 ) echo "The val is 2" ;; | |
( * ) echo "The value is not 1 or 2" ;; | |
esac | |
# There is a shorter version to case aswell | |
case $OS in | |
ubuntu ) echo "Running ubuntu" ;; | |
centos ) echo "Running centos" ;; |
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# for-each | |
MY_ARRAY=("one", "two", "three") | |
for i in MY_ARRAY ; do | |
echo $i | |
done | |
# extended for-loop | |
for (( i=0; i "-lt" 3; i++ )) ; do | |
echo $i |
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while command ; do | |
something | |
done |
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