Answer by Matija Nalis for convert text file of bits to binary file

oneliner to convert 32-bit strings of ones and zeros into corresponding binary:

$ perl -ne 'print pack("B32", $_)'< instructions.txt > instructions.bin

what it does:

• perl -ne will iterate through each line of input file provided on STDIN (instructions.txt)
• pack("B32", $_) will take a string list of 32 bits ($_ which we just read from STDIN), and convert it to binary value (you could alternatively use "b32" if you wanted ascending bit order inside each byte instead of descending bit order; see perldoc -f pack for more details)
• print would then output that converted value to STDOUT, which we then redirect to our binary file instructions.bin

verify:

$ hexdump -Cv instructions.bin00000000  00 00 00 13 02 d1 20 83  00 73 02 b3 00 73 04 33  |...... ..s...s.3|00000010  00 73 64 b3 00 00 00 13                           |.sd.....|00000018$ xxd -b -c4 instructions.bin00000000: 00000000 00000000 00000000 00010011  ....00000004: 00000010 11010001 00100000 10000011  .. .00000008: 00000000 01110011 00000010 10110011  .s..0000000c: 00000000 01110011 00000100 00110011  .s.300000010: 00000000 01110011 01100100 10110011  .sd.00000014: 00000000 00000000 00000000 00010011  ....