if I have a txt file with an item in each line for example, fruits.txt.
apples
oranges
bananas
cherries
How can I use a bash command line/s to convert it into another txt file that has an enumerated id corresponding to a particular fruit, to say fruitids.txt.
item {
id: 1
name: 'apples'
}
item {
id: 2
name: 'oranges'
}
item {
id: 3
name: 'bananas'
}
item {
id: 4
name: 'cherries'
}
Awk solution:
awk '{ printf "item {\n id: %d\n name: \047%s\047\n}\n",NR,$1 }' fruits.txt > fruitids.txt
The final fruitids.txt contents:
item {
id: 1
name: 'apples'
}
item {
id: 2
name: 'oranges'
}
item {
id: 3
name: 'bananas'
}
item {
id: 4
name: 'cherries'
}
try:
nl fruits.txt |awk '{print "item {\n" "\t id:" $1"\n \t name:" $2 "\n}"}' > fruitsid.txt
Another solution with pure bash:
c=0
while read i; do
c=$((c+1))
echo -e "item {\n id: $c \n name: '$i'\n}"
done < <(cat fruits.txt) >> fruitsid.txt
One-liner:
c=0; while read i; do c=$((c+1)) && echo -e "item {\n id: $c \n name: '$i'\n}" ; done < <(cat fruits.txt) >> fruitsid.txt
Output:
item {
id: 1
name: 'apples'
}
item {
id: 2
name: 'oranges'
}
item {
id: 3
name: 'bananas'
}
item {
id: 4
name: 'cherries'
}
