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November 8, 2023 12:58
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Bash script which generate checksum from a list of dirs and files located inside a file.
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| #!/usr/bin/env bash | |
| checksum() { | |
| FILE=$1 | |
| if [ "$ALGO" = "SHA1" ]; then | |
| sha1sum $FILE | |
| else | |
| md5sum $FILE | |
| fi | |
| } | |
| generate() { | |
| PASSED=$1 | |
| if [ -f "${PASSED}" ]; then | |
| checksum $PASSED | |
| fi | |
| } | |
| allFiles() { | |
| FARRAY=() | |
| WHICH=$1 | |
| PATH_=$2 | |
| if [ -d "${PATH_}" ]; then | |
| FILES="$(find $PATH_)" | |
| for F1 in $FILES ; do | |
| if [ -f "${F1}" ]; then | |
| # echo $F1 | |
| FARRAY+=($F1) | |
| fi | |
| done | |
| else | |
| if [ -f "${PATH_}" ]; then | |
| FARRAY+=($PATH_) | |
| fi | |
| fi | |
| if [ "$WHICH" -eq 1 ]; then | |
| ARRAY1+=("${FARRAY[@]}") | |
| else | |
| ARRAY2+=("${FARRAY[@]}") | |
| fi | |
| } | |
| echo '-------------------------------' | |
| LOOK=$1 | |
| ALGO=$2 | |
| DIR1=$3 | |
| DIR2=$4 | |
| echo 'COLLECTION: '$LOOK | |
| echo 'ALGORITHM: '$ALGO | |
| echo 'DIR_1: '$DIR1 | |
| echo 'DIR_2: '$DIR2 | |
| ARRAY1=() | |
| ARRAY2=() | |
| for F in $(cat $LOOK | sort) ; do | |
| allFiles 1 $DIR1$F | |
| allFiles 2 $DIR2$F | |
| done | |
| echo '' | |
| echo '======================FILES FROM: '$DIR1' ======================' | |
| for GEN1 in sort ${ARRAY1[*]} ; do | |
| generate $GEN1 | |
| done | |
| echo '' | |
| echo ' ======================FILES FROM: '$DIR2' ======================' | |
| for GEN2 in sort ${ARRAY2[*]} ; do | |
| generate $GEN2 | |
| done | |
| mkdir dir1 2>/dev/null | |
| cp ${ARRAY1[*]} dir1/ 2>/dev/null | |
| mkdir dir2 2>/dev/null | |
| cp ${ARRAY2[*]} dir2/ 2>/dev/null | |
| echo '' | |
| echo '======================TAR OF FILES: '$DIR1' ======================' | |
| cd dir1 | |
| if [ "$ALGO" = "SHA1" ]; then | |
| find | xargs tar cvf - | sha1sum | |
| else | |
| find | xargs tar cvf - | md5sum | |
| fi | |
| echo '' | |
| echo '======================TAR OF FILES: '$DIR2' ======================' | |
| cd ../dir2 | |
| if [ "$ALGO" = "SHA1" ]; then | |
| find | xargs tar cvf - | sha1sum | |
| else | |
| find | xargs tar cvf - | md5sum | |
| fi |
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Gerador de checksum
Pequeno script que gera o checksum (SHA1 ou MD5) de uma lista de arquivos existente em dois diretórios diferentes. Permitindo assim a verificação dos hash's gerados.
Como utilizar
Crie uma listagem contendo todos os nomes dos arquivos, ou os diretórios os quais pretende que sejam avaliados.
Execute o script conforme abaixo, passando os parâmetros necessários
Exemplo
$> ./compare.sh lista.txt SHA1 /home/user1 /home/user2