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“last” command not working properly
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I read a few guides online that explain how to use the command last to have a list of user logins.
One of the easiest command is:
last -s yesterday -t today
which should show the list of logins from yesterday till today. But when I execute this command on a Mac I receive an:
last: illegal option -- s
usage: last [-#] [-t tty] [-h hostname] [user ...]
This is not how it is supposed to work.
Why -s is not recognised?
terminal command-line login
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
add a comment
|
I read a few guides online that explain how to use the command last to have a list of user logins.
One of the easiest command is:
last -s yesterday -t today
which should show the list of logins from yesterday till today. But when I execute this command on a Mac I receive an:
last: illegal option -- s
usage: last [-#] [-t tty] [-h hostname] [user ...]
This is not how it is supposed to work.
Why -s is not recognised?
terminal command-line login
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
add a comment
|
I read a few guides online that explain how to use the command last to have a list of user logins.
One of the easiest command is:
last -s yesterday -t today
which should show the list of logins from yesterday till today. But when I execute this command on a Mac I receive an:
last: illegal option -- s
usage: last [-#] [-t tty] [-h hostname] [user ...]
This is not how it is supposed to work.
Why -s is not recognised?
terminal command-line login
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
I read a few guides online that explain how to use the command last to have a list of user logins.
One of the easiest command is:
last -s yesterday -t today
which should show the list of logins from yesterday till today. But when I execute this command on a Mac I receive an:
last: illegal option -- s
usage: last [-#] [-t tty] [-h hostname] [user ...]
This is not how it is supposed to work.
Why -s is not recognised?
terminal command-line login
terminal command-line login
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
asked 8 hours ago
Francesco MantovaniFrancesco Mantovani
1264 bronze badges
1264 bronze badges
add a comment
|
add a comment
|
2 Answers
2
active
oldest
votes
Always use man X directly on the Mac itself to see what is available for command X. The reason is that OS X was originally based on BSD and not GNU (most likely to avoid the GPL) so you should not follow Linux tutorials for MacOS.
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
add a comment
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The 'last' command on a Mac has no -s option. Not all Unix commands are implemented the same on a Mac. Mac tends tends to use original BSD commands. As to why 's' isn't an option on the Mac, according to @Mark, it may be due to the difference in BSD (Mac) and GNU (Linux). There are most likely differences between the two.
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
thank you. my bad.
– jmh
7 hours ago
add a comment
|
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Always use man X directly on the Mac itself to see what is available for command X. The reason is that OS X was originally based on BSD and not GNU (most likely to avoid the GPL) so you should not follow Linux tutorials for MacOS.
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
add a comment
|
Always use man X directly on the Mac itself to see what is available for command X. The reason is that OS X was originally based on BSD and not GNU (most likely to avoid the GPL) so you should not follow Linux tutorials for MacOS.
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
add a comment
|
Always use man X directly on the Mac itself to see what is available for command X. The reason is that OS X was originally based on BSD and not GNU (most likely to avoid the GPL) so you should not follow Linux tutorials for MacOS.
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
Always use man X directly on the Mac itself to see what is available for command X. The reason is that OS X was originally based on BSD and not GNU (most likely to avoid the GPL) so you should not follow Linux tutorials for MacOS.
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
answered 7 hours ago
Thorbjørn Ravn AndersenThorbjørn Ravn Andersen
5222 gold badges5 silver badges22 bronze badges
5222 gold badges5 silver badges22 bronze badges
add a comment
|
add a comment
|
The 'last' command on a Mac has no -s option. Not all Unix commands are implemented the same on a Mac. Mac tends tends to use original BSD commands. As to why 's' isn't an option on the Mac, according to @Mark, it may be due to the difference in BSD (Mac) and GNU (Linux). There are most likely differences between the two.
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
thank you. my bad.
– jmh
7 hours ago
add a comment
|
The 'last' command on a Mac has no -s option. Not all Unix commands are implemented the same on a Mac. Mac tends tends to use original BSD commands. As to why 's' isn't an option on the Mac, according to @Mark, it may be due to the difference in BSD (Mac) and GNU (Linux). There are most likely differences between the two.
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
thank you. my bad.
– jmh
7 hours ago
add a comment
|
The 'last' command on a Mac has no -s option. Not all Unix commands are implemented the same on a Mac. Mac tends tends to use original BSD commands. As to why 's' isn't an option on the Mac, according to @Mark, it may be due to the difference in BSD (Mac) and GNU (Linux). There are most likely differences between the two.
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
The 'last' command on a Mac has no -s option. Not all Unix commands are implemented the same on a Mac. Mac tends tends to use original BSD commands. As to why 's' isn't an option on the Mac, according to @Mark, it may be due to the difference in BSD (Mac) and GNU (Linux). There are most likely differences between the two.
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
edited 7 hours ago
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
answered 8 hours ago
jmhjmh
5,7262 gold badges9 silver badges33 bronze badges
5,7262 gold badges9 silver badges33 bronze badges
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
thank you. my bad.
– jmh
7 hours ago
add a comment
|
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
thank you. my bad.
– jmh
7 hours ago
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
First part OK. Second part is incorrect. Mac uses BSD commands. GNU, which is what Linux uses, often adds extra non standard options, BSD tends to stick to the older options, So upto BSD and GNU why options differ, not really Apple's choice
– Mark
7 hours ago
thank you. my bad.
– jmh
7 hours ago
thank you. my bad.
– jmh
7 hours ago
add a comment
|
