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bible: Add read file method which works like mapfile. Closes #62

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Dylan Araps 2019-09-19 16:34:18 +03:00
parent b713eafcbe
commit e1c90d7590
2 changed files with 12 additions and 2 deletions
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7
README.md
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@ -878,9 +878,14 @@ file_data="$(<"file")"
Alternative to the `cat` command. Alternative to the `cat` command.
```shell ```shell
# Bash <4 # Bash <4 (discarding empty lines).
IFS=$'\n' read -d "" -ra file_data < "file" IFS=$'\n' read -d "" -ra file_data < "file"
# Bash <4 (preserving empty lines).
while read -r line; do
file_data+=("$line")
done < "file"
# Bash 4+ # Bash 4+
mapfile -t file_data < "file" mapfile -t file_data < "file"
``` ```

7
manuscript/chapter4.txt
View File

@ -15,9 +15,14 @@ file_data="$(<"file")"
Alternative to the `cat` command. Alternative to the `cat` command.
```shell ```shell
# Bash <4 # Bash <4 (discarding empty lines).
IFS=$'\n' read -d "" -ra file_data < "file" IFS=$'\n' read -d "" -ra file_data < "file"
# Bash <4 (preserving empty lines).
while read -r line; do
file_data+=("$line")
done < "file"
# Bash 4+ # Bash 4+
mapfile -t file_data < "file" mapfile -t file_data < "file"
``` ```