是一个用于将文件内容读取到数组中的函数。它可以帮助我们在Bash shell脚本中处理文件内容。 以下是一个示例的Bash shell函数,用于将文件读入数组: 代码语言:bash 复制 read_file_into_array(){localfile="$1"localarray_name="$2"locallinelocali=0# 逐行读取文件内容,并将每行存储到数组中whileIFS=read-rline...
3. Read into an array using a file (without loop) Like me, if you try to avoid loops as much as possible then you can refer to this section which is quite easy compared to the above method. Here, I will be using the mapfile command as shown: #!/bin/bash file="data.txt" array...
How to sort the elements of an Array in a shell script? How to get a subset of an Array? How to check if a Bash Array is empty? How to check if a Bash Array contains a value? How to store each line of a file into an indexed array?
declare -a declares an array and all the elements in the parentheses are the elements of an array. 3. Print the Whole Bash Array There are different ways to print the whole elements of the array. If the index number is @ or *, all members of an array are referenced. You can traverse...
FILE HANDLINGCAVEAT: bash does not handle binary data properly in versions < 4.4.Read a file to a stringAlternative to the cat command.file_data="$(<"file")"Read a file to an array (by line)Alternative to the cat command.# Bash <4 IFS=$'\n' read -d "" -ra file_data < "...
Read a file to an array (by line)Alternative to the cat command.# Bash <4 (discarding empty lines). IFS=$'\n' read -d "" -ra file_data < "file" # Bash <4 (preserving empty lines). while read -r line; do file_data+=("$line") done < "file" # Bash 4+ mapfile -t ...
read -a array <<< "Hello world!"Copy Retrieve the array elements with: echo ${array[0]} echo ${array[1]}Copy Alternatively, use afor loopto iterate through the array. Escape Characters and Backslashes Thereadcommand allows splitting long inputs into multiple lines using backslashes. For ex...
file-to-array read routine (readarray), but the bashdb package has to be compiled in a special way which needs access to the bash source code and objects. Another reason of the debugger slowness is that the debugger has to intercept every line and check to see if some action is to be...
an array and a mechanism to allow the .B read builtin to read a list of values directly into an array, would be desirable. Given those extensions, the ksh .B "set \-A" syntax may not be worth supporting (the .B \-A option assigns a list of values to an array, but...
Here we are utilizing an array that contains students and reading them one by one using a "for a loop." #!/bin/bash students=(jessica jhon dwain sian rose mary jake123 sam303) echo "Read data from an array" for i in "${students[@]}" do echo "Student name : $i" done echo "...