OSX: Generate MD5 checksum recursively in a textfile containing files with corresponding checksum
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In a directory withmultiple subdirectories but only one folder deep containing tiff-files I'd like to generate a md5 checksum that writes the filename with the corresponding checksum into a textfile.
For example in directory TIFF I have 2 subdirectories:
TIFF
|- b0125TIFF
|- b_0000_001.tif
|- b_0000_002.tif
|- b_0000_003.tif
|- b_0000_004.tif
|- c0126TIFF
|- c_0000_001.tif
|- c_0000_002.tif
|- c_0000_003.tif
|- c_0000_004.tif
My expected textfile (checksum should be of course different):
** foo.md5:
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_004.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_004.tif
How can I achieve that?
I know that this generates the checksum recursively in one directory:
find -s . -type f -exec md5 -q ; | md5
shell-script osx hashsum
add a comment |Â
up vote
2
down vote
favorite
In a directory withmultiple subdirectories but only one folder deep containing tiff-files I'd like to generate a md5 checksum that writes the filename with the corresponding checksum into a textfile.
For example in directory TIFF I have 2 subdirectories:
TIFF
|- b0125TIFF
|- b_0000_001.tif
|- b_0000_002.tif
|- b_0000_003.tif
|- b_0000_004.tif
|- c0126TIFF
|- c_0000_001.tif
|- c_0000_002.tif
|- c_0000_003.tif
|- c_0000_004.tif
My expected textfile (checksum should be of course different):
** foo.md5:
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_004.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_004.tif
How can I achieve that?
I know that this generates the checksum recursively in one directory:
find -s . -type f -exec md5 -q ; | md5
shell-script osx hashsum
This is whatmd5does by default if you leave the-qflag out and give it multiple files... Are you not happy with the default output ofmd5?
– Kusalananda
Oct 3 '17 at 8:35
Oh, I didn't know. I started the command find -s . -type f -exec md5 -q ; | md5 and will check the result but it takes several hours (have 3TB on tiff files). Will close the question afterwards.
– user253874
Oct 3 '17 at 8:53
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
In a directory withmultiple subdirectories but only one folder deep containing tiff-files I'd like to generate a md5 checksum that writes the filename with the corresponding checksum into a textfile.
For example in directory TIFF I have 2 subdirectories:
TIFF
|- b0125TIFF
|- b_0000_001.tif
|- b_0000_002.tif
|- b_0000_003.tif
|- b_0000_004.tif
|- c0126TIFF
|- c_0000_001.tif
|- c_0000_002.tif
|- c_0000_003.tif
|- c_0000_004.tif
My expected textfile (checksum should be of course different):
** foo.md5:
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_004.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_004.tif
How can I achieve that?
I know that this generates the checksum recursively in one directory:
find -s . -type f -exec md5 -q ; | md5
shell-script osx hashsum
In a directory withmultiple subdirectories but only one folder deep containing tiff-files I'd like to generate a md5 checksum that writes the filename with the corresponding checksum into a textfile.
For example in directory TIFF I have 2 subdirectories:
TIFF
|- b0125TIFF
|- b_0000_001.tif
|- b_0000_002.tif
|- b_0000_003.tif
|- b_0000_004.tif
|- c0126TIFF
|- c_0000_001.tif
|- c_0000_002.tif
|- c_0000_003.tif
|- c_0000_004.tif
My expected textfile (checksum should be of course different):
** foo.md5:
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *b0125TIFF/b_0000_004.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_001.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_002.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_003.tif
188be1dbd4f6bcfdef8d25639473e6ec *c0126TIFF/c_0000_004.tif
How can I achieve that?
I know that this generates the checksum recursively in one directory:
find -s . -type f -exec md5 -q ; | md5
shell-script osx hashsum
shell-script osx hashsum
asked Oct 3 '17 at 8:22
user253874
This is whatmd5does by default if you leave the-qflag out and give it multiple files... Are you not happy with the default output ofmd5?
– Kusalananda
Oct 3 '17 at 8:35
Oh, I didn't know. I started the command find -s . -type f -exec md5 -q ; | md5 and will check the result but it takes several hours (have 3TB on tiff files). Will close the question afterwards.
– user253874
Oct 3 '17 at 8:53
add a comment |Â
This is whatmd5does by default if you leave the-qflag out and give it multiple files... Are you not happy with the default output ofmd5?
– Kusalananda
Oct 3 '17 at 8:35
Oh, I didn't know. I started the command find -s . -type f -exec md5 -q ; | md5 and will check the result but it takes several hours (have 3TB on tiff files). Will close the question afterwards.
– user253874
Oct 3 '17 at 8:53
This is what
md5 does by default if you leave the -q flag out and give it multiple files... Are you not happy with the default output of md5?– Kusalananda
Oct 3 '17 at 8:35
This is what
md5 does by default if you leave the -q flag out and give it multiple files... Are you not happy with the default output of md5?– Kusalananda
Oct 3 '17 at 8:35
Oh, I didn't know. I started the command find -s . -type f -exec md5 -q ; | md5 and will check the result but it takes several hours (have 3TB on tiff files). Will close the question afterwards.
– user253874
Oct 3 '17 at 8:53
Oh, I didn't know. I started the command find -s . -type f -exec md5 -q ; | md5 and will check the result but it takes several hours (have 3TB on tiff files). Will close the question afterwards.
– user253874
Oct 3 '17 at 8:53
add a comment |Â
1 Answer
1
active
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votes
up vote
1
down vote
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You don't want to pass the output of the find and md5 through md5, that would just give you an MD5 checksum of a lot of MD5 checksums...
$ find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt
$ cat md5.txt
MD5 (TIFF/b0125TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
The md5 implementation on macOS does not support verifying checksums with md5 -c unfortunately, but the shasum utility does:
$ find TIFF -type f -name '*.tif' -exec shasum ';' >sums.txt
$ cat sums.txt
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-3.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-3.tif
$ shasum -c sums.txt
TIFF/b0125TIFF/file-1.tif: OK
TIFF/b0125TIFF/file-2.tif: OK
TIFF/b0125TIFF/file-3.tif: OK
TIFF/c0126TIFF/file-1.tif: OK
TIFF/c0126TIFF/file-2.tif: OK
TIFF/c0126TIFF/file-3.tif: OK
shasum calculates the SHA1 hash of a file by default.
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
@EmilyChoi Ah, themd5on macOS does not have the-cflag. Then you may either useshasuminstead or install GNU coreutils and usemd5sumfrom there. I will add theshasumvariation to my answer soon.
– Kusalananda
Oct 3 '17 at 9:29
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
@EmilyChoi Yes,md5is not available on Linux. You may trymd5sumthere. Usemd5sum --tag(I think) to get the same format output as on macOS. There's alsosha1sumthat generates the same kind of output asshasumon macOS. These Linux commands come from the GNU coreutils package and are often installed by default.
– Kusalananda
Oct 3 '17 at 11:35
1
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
 |Â
show 3 more comments
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
accepted
You don't want to pass the output of the find and md5 through md5, that would just give you an MD5 checksum of a lot of MD5 checksums...
$ find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt
$ cat md5.txt
MD5 (TIFF/b0125TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
The md5 implementation on macOS does not support verifying checksums with md5 -c unfortunately, but the shasum utility does:
$ find TIFF -type f -name '*.tif' -exec shasum ';' >sums.txt
$ cat sums.txt
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-3.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-3.tif
$ shasum -c sums.txt
TIFF/b0125TIFF/file-1.tif: OK
TIFF/b0125TIFF/file-2.tif: OK
TIFF/b0125TIFF/file-3.tif: OK
TIFF/c0126TIFF/file-1.tif: OK
TIFF/c0126TIFF/file-2.tif: OK
TIFF/c0126TIFF/file-3.tif: OK
shasum calculates the SHA1 hash of a file by default.
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
@EmilyChoi Ah, themd5on macOS does not have the-cflag. Then you may either useshasuminstead or install GNU coreutils and usemd5sumfrom there. I will add theshasumvariation to my answer soon.
– Kusalananda
Oct 3 '17 at 9:29
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
@EmilyChoi Yes,md5is not available on Linux. You may trymd5sumthere. Usemd5sum --tag(I think) to get the same format output as on macOS. There's alsosha1sumthat generates the same kind of output asshasumon macOS. These Linux commands come from the GNU coreutils package and are often installed by default.
– Kusalananda
Oct 3 '17 at 11:35
1
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
 |Â
show 3 more comments
up vote
1
down vote
accepted
You don't want to pass the output of the find and md5 through md5, that would just give you an MD5 checksum of a lot of MD5 checksums...
$ find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt
$ cat md5.txt
MD5 (TIFF/b0125TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
The md5 implementation on macOS does not support verifying checksums with md5 -c unfortunately, but the shasum utility does:
$ find TIFF -type f -name '*.tif' -exec shasum ';' >sums.txt
$ cat sums.txt
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-3.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-3.tif
$ shasum -c sums.txt
TIFF/b0125TIFF/file-1.tif: OK
TIFF/b0125TIFF/file-2.tif: OK
TIFF/b0125TIFF/file-3.tif: OK
TIFF/c0126TIFF/file-1.tif: OK
TIFF/c0126TIFF/file-2.tif: OK
TIFF/c0126TIFF/file-3.tif: OK
shasum calculates the SHA1 hash of a file by default.
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
@EmilyChoi Ah, themd5on macOS does not have the-cflag. Then you may either useshasuminstead or install GNU coreutils and usemd5sumfrom there. I will add theshasumvariation to my answer soon.
– Kusalananda
Oct 3 '17 at 9:29
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
@EmilyChoi Yes,md5is not available on Linux. You may trymd5sumthere. Usemd5sum --tag(I think) to get the same format output as on macOS. There's alsosha1sumthat generates the same kind of output asshasumon macOS. These Linux commands come from the GNU coreutils package and are often installed by default.
– Kusalananda
Oct 3 '17 at 11:35
1
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
 |Â
show 3 more comments
up vote
1
down vote
accepted
up vote
1
down vote
accepted
You don't want to pass the output of the find and md5 through md5, that would just give you an MD5 checksum of a lot of MD5 checksums...
$ find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt
$ cat md5.txt
MD5 (TIFF/b0125TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
The md5 implementation on macOS does not support verifying checksums with md5 -c unfortunately, but the shasum utility does:
$ find TIFF -type f -name '*.tif' -exec shasum ';' >sums.txt
$ cat sums.txt
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-3.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-3.tif
$ shasum -c sums.txt
TIFF/b0125TIFF/file-1.tif: OK
TIFF/b0125TIFF/file-2.tif: OK
TIFF/b0125TIFF/file-3.tif: OK
TIFF/c0126TIFF/file-1.tif: OK
TIFF/c0126TIFF/file-2.tif: OK
TIFF/c0126TIFF/file-3.tif: OK
shasum calculates the SHA1 hash of a file by default.
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
You don't want to pass the output of the find and md5 through md5, that would just give you an MD5 checksum of a lot of MD5 checksums...
$ find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt
$ cat md5.txt
MD5 (TIFF/b0125TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/b0125TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-1.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-2.tif) = d41d8cd98f00b204e9800998ecf8427e
MD5 (TIFF/c0126TIFF/file-3.tif) = d41d8cd98f00b204e9800998ecf8427e
The md5 implementation on macOS does not support verifying checksums with md5 -c unfortunately, but the shasum utility does:
$ find TIFF -type f -name '*.tif' -exec shasum ';' >sums.txt
$ cat sums.txt
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/b0125TIFF/file-3.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-1.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-2.tif
da39a3ee5e6b4b0d3255bfef95601890afd80709 TIFF/c0126TIFF/file-3.tif
$ shasum -c sums.txt
TIFF/b0125TIFF/file-1.tif: OK
TIFF/b0125TIFF/file-2.tif: OK
TIFF/b0125TIFF/file-3.tif: OK
TIFF/c0126TIFF/file-1.tif: OK
TIFF/c0126TIFF/file-2.tif: OK
TIFF/c0126TIFF/file-3.tif: OK
shasum calculates the SHA1 hash of a file by default.
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
edited Oct 3 '17 at 9:34
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
answered Oct 3 '17 at 8:57
Kusalananda
105k14209326
105k14209326
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
@EmilyChoi Ah, themd5on macOS does not have the-cflag. Then you may either useshasuminstead or install GNU coreutils and usemd5sumfrom there. I will add theshasumvariation to my answer soon.
– Kusalananda
Oct 3 '17 at 9:29
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
@EmilyChoi Yes,md5is not available on Linux. You may trymd5sumthere. Usemd5sum --tag(I think) to get the same format output as on macOS. There's alsosha1sumthat generates the same kind of output asshasumon macOS. These Linux commands come from the GNU coreutils package and are often installed by default.
– Kusalananda
Oct 3 '17 at 11:35
1
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
 |Â
show 3 more comments
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
@EmilyChoi Ah, themd5on macOS does not have the-cflag. Then you may either useshasuminstead or install GNU coreutils and usemd5sumfrom there. I will add theshasumvariation to my answer soon.
– Kusalananda
Oct 3 '17 at 9:29
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
@EmilyChoi Yes,md5is not available on Linux. You may trymd5sumthere. Usemd5sum --tag(I think) to get the same format output as on macOS. There's alsosha1sumthat generates the same kind of output asshasumon macOS. These Linux commands come from the GNU coreutils package and are often installed by default.
– Kusalananda
Oct 3 '17 at 11:35
1
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
The creation of md5 checksums work great, thank you very much! But when I try $ md5 -c md5.txt I get md5: illegal option -- c usage: md5 [-pqrtx] [-s string] [files ...]
– user253874
Oct 3 '17 at 9:22
@EmilyChoi Ah, the
md5 on macOS does not have the -c flag. Then you may either use shasum instead or install GNU coreutils and use md5sum from there. I will add the shasum variation to my answer soon.– Kusalananda
Oct 3 '17 at 9:29
@EmilyChoi Ah, the
md5 on macOS does not have the -c flag. Then you may either use shasum instead or install GNU coreutils and use md5sum from there. I will add the shasum variation to my answer soon.– Kusalananda
Oct 3 '17 at 9:29
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
great, thank you very much! Just a note: I was trying the "find TIFF -type f -name '*.tif' -exec md5 ';' >md5.txt" on linux and I'm getting "find: 'md5': No such file or directory" Do you know what's causing it? On OSX it works.
– user253874
Oct 3 '17 at 11:31
@EmilyChoi Yes,
md5 is not available on Linux. You may try md5sum there. Use md5sum --tag (I think) to get the same format output as on macOS. There's also sha1sum that generates the same kind of output as shasum on macOS. These Linux commands come from the GNU coreutils package and are often installed by default.– Kusalananda
Oct 3 '17 at 11:35
@EmilyChoi Yes,
md5 is not available on Linux. You may try md5sum there. Use md5sum --tag (I think) to get the same format output as on macOS. There's also sha1sum that generates the same kind of output as shasum on macOS. These Linux commands come from the GNU coreutils package and are often installed by default.– Kusalananda
Oct 3 '17 at 11:35
1
1
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
yes, I was too impatient. After a few minutes the filesize of sums_checked_results.txt increased from 0 bytes. Thanks for helping!
– user253874
Oct 4 '17 at 9:33
 |Â
show 3 more comments
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This is what
md5does by default if you leave the-qflag out and give it multiple files... Are you not happy with the default output ofmd5?– Kusalananda
Oct 3 '17 at 8:35
Oh, I didn't know. I started the command find -s . -type f -exec md5 -q ; | md5 and will check the result but it takes several hours (have 3TB on tiff files). Will close the question afterwards.
– user253874
Oct 3 '17 at 8:53