How to encrypt a file using Bash?
up vote
-2
down vote
favorite
I am trying to encrypt a test file I have and decrypt the file using a bash script.
I searched online and found I can use openssl and salt to do this.
I found the following code online:
FNAME=$1
if [[ -z "$FNAME" ]]; then
echo "cryptde <name of file>"
echo " - cryptde is a script to decrypt des3 encrypted files"
exit;
fi
openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
How does it work?
bash encryption
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
asked Oct 11 '17 at 17:48
Allen
11
add a comment |
up vote
-2
down vote
favorite
I am trying to encrypt a test file I have and decrypt the file using a bash script.
I searched online and found I can use openssl and salt to do this.
I found the following code online:
FNAME=$1
if [[ -z "$FNAME" ]]; then
echo "cryptde <name of file>"
echo " - cryptde is a script to decrypt des3 encrypted files"
exit;
fi
openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
How does it work?
bash encryption
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
asked Oct 11 '17 at 17:48
Allen
11
What part do you not understand? Read the man page for each command.
– user1133275
Oct 11 '17 at 18:56
add a comment |
up vote
-2
down vote
favorite
up vote
-2
down vote
favorite
I am trying to encrypt a test file I have and decrypt the file using a bash script.
I searched online and found I can use openssl and salt to do this.
I found the following code online:
FNAME=$1
if [[ -z "$FNAME" ]]; then
echo "cryptde <name of file>"
echo " - cryptde is a script to decrypt des3 encrypted files"
exit;
fi
openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
How does it work?
bash encryption
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
asked Oct 11 '17 at 17:48
Allen
11
I am trying to encrypt a test file I have and decrypt the file using a bash script.
I searched online and found I can use openssl and salt to do this.
I found the following code online:
FNAME=$1
if [[ -z "$FNAME" ]]; then
echo "cryptde <name of file>"
echo " - cryptde is a script to decrypt des3 encrypted files"
exit;
fi
openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
How does it work?
bash encryption
bash encryption
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
asked Oct 11 '17 at 17:48
Allen
11
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
asked Oct 11 '17 at 17:48
Allen
11
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
edited Nov 25 at 14:18
Rui F Ribeiro
38.3k1475126
38.3k1475126
asked Oct 11 '17 at 17:48
Allen
11
asked Oct 11 '17 at 17:48
Allen
11
asked Oct 11 '17 at 17:48
Allen
11
11
What part do you not understand? Read the man page for each command.
– user1133275
Oct 11 '17 at 18:56
add a comment |
What part do you not understand? Read the man page for each command.
– user1133275
Oct 11 '17 at 18:56
What part do you not understand? Read the man page for each command.
– user1133275
Oct 11 '17 at 18:56
What part do you not understand? Read the man page for each command.
– user1133275
Oct 11 '17 at 18:56
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
accepted
- FNAME=$1
This assigns the first parameter to FNAME
- if [[ -z "$FNAME" ]]; then
If the string $FNAME is zero in length, then echo the help output and exit
- openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
This line runs the openssl command's des3 module (man des3) takes $FNAME as input file name, then writes output to $FNAME without a .extension. This final argument is a regular expression that strips the extension off (.[NOT .]any number of times.
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
accepted
- FNAME=$1
This assigns the first parameter to FNAME
- if [[ -z "$FNAME" ]]; then
If the string $FNAME is zero in length, then echo the help output and exit
- openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
This line runs the openssl command's des3 module (man des3) takes $FNAME as input file name, then writes output to $FNAME without a .extension. This final argument is a regular expression that strips the extension off (.[NOT .]any number of times.
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
add a comment |
up vote
0
down vote
accepted
- FNAME=$1
This assigns the first parameter to FNAME
- if [[ -z "$FNAME" ]]; then
If the string $FNAME is zero in length, then echo the help output and exit
- openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
This line runs the openssl command's des3 module (man des3) takes $FNAME as input file name, then writes output to $FNAME without a .extension. This final argument is a regular expression that strips the extension off (.[NOT .]any number of times.
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
add a comment |
up vote
0
down vote
accepted
up vote
0
down vote
accepted
- FNAME=$1
This assigns the first parameter to FNAME
- if [[ -z "$FNAME" ]]; then
If the string $FNAME is zero in length, then echo the help output and exit
- openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
This line runs the openssl command's des3 module (man des3) takes $FNAME as input file name, then writes output to $FNAME without a .extension. This final argument is a regular expression that strips the extension off (.[NOT .]any number of times.
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
- FNAME=$1
This assigns the first parameter to FNAME
- if [[ -z "$FNAME" ]]; then
If the string $FNAME is zero in length, then echo the help output and exit
- openssl des3 -d -salt -in "$FNAME" -out "${FNAME%.[^.]*}"
This line runs the openssl command's des3 module (man des3) takes $FNAME as input file name, then writes output to $FNAME without a .extension. This final argument is a regular expression that strips the extension off (.[NOT .]any number of times.
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
answered Oct 11 '17 at 18:56
Ed Neville
1,13157
1,13157
add a comment |
add a comment |
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What part do you not understand? Read the man page for each command.
– user1133275
Oct 11 '17 at 18:56