time not accepting arguments
I installed time but when I use it, I am getting the portable format, not the default format. When installed I think it said GNU time 1.7 or 1.72.
Commands like
time --help
time --version
fail with the error "command not found". The TIME environment variable is unset. Why is time behaving like this?
arch-linux time
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
add a comment |
I installed time but when I use it, I am getting the portable format, not the default format. When installed I think it said GNU time 1.7 or 1.72.
Commands like
time --help
time --version
fail with the error "command not found". The TIME environment variable is unset. Why is time behaving like this?
arch-linux time
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
2
timeis a shell keyword, you probably have to point to the full path of the installed time to use it:/usr/bin/time --versionor maybe alias it.
– Jesse_b
Jan 27 at 23:42
Is it possible you already have an alias fortime='time -p'that would explain the portable format?
– Jesse_b
Jan 28 at 0:05
@Jesse_b no alias. I think it is using the bash keyword 'time' which apparently is identical to time -p
– Tyler Durden
Jan 28 at 0:32
On my system the time builtin still has a-poption to print portable.
– Jesse_b
Jan 28 at 0:46
add a comment |
I installed time but when I use it, I am getting the portable format, not the default format. When installed I think it said GNU time 1.7 or 1.72.
Commands like
time --help
time --version
fail with the error "command not found". The TIME environment variable is unset. Why is time behaving like this?
arch-linux time
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
I installed time but when I use it, I am getting the portable format, not the default format. When installed I think it said GNU time 1.7 or 1.72.
Commands like
time --help
time --version
fail with the error "command not found". The TIME environment variable is unset. Why is time behaving like this?
arch-linux time
arch-linux time
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
asked Jan 27 at 23:39
Tyler DurdenTyler Durden
1,64142450
1,64142450
2
timeis a shell keyword, you probably have to point to the full path of the installed time to use it:/usr/bin/time --versionor maybe alias it.
– Jesse_b
Jan 27 at 23:42
Is it possible you already have an alias fortime='time -p'that would explain the portable format?
– Jesse_b
Jan 28 at 0:05
@Jesse_b no alias. I think it is using the bash keyword 'time' which apparently is identical to time -p
– Tyler Durden
Jan 28 at 0:32
On my system the time builtin still has a-poption to print portable.
– Jesse_b
Jan 28 at 0:46
add a comment |
2
timeis a shell keyword, you probably have to point to the full path of the installed time to use it:/usr/bin/time --versionor maybe alias it.
– Jesse_b
Jan 27 at 23:42
Is it possible you already have an alias fortime='time -p'that would explain the portable format?
– Jesse_b
Jan 28 at 0:05
@Jesse_b no alias. I think it is using the bash keyword 'time' which apparently is identical to time -p
– Tyler Durden
Jan 28 at 0:32
On my system the time builtin still has a-poption to print portable.
– Jesse_b
Jan 28 at 0:46
2
2
time is a shell keyword, you probably have to point to the full path of the installed time to use it: /usr/bin/time --version or maybe alias it.– Jesse_b
Jan 27 at 23:42
time is a shell keyword, you probably have to point to the full path of the installed time to use it: /usr/bin/time --version or maybe alias it.– Jesse_b
Jan 27 at 23:42
Is it possible you already have an alias for
time='time -p' that would explain the portable format?– Jesse_b
Jan 28 at 0:05
Is it possible you already have an alias for
time='time -p' that would explain the portable format?– Jesse_b
Jan 28 at 0:05
@Jesse_b no alias. I think it is using the bash keyword 'time' which apparently is identical to time -p
– Tyler Durden
Jan 28 at 0:32
@Jesse_b no alias. I think it is using the bash keyword 'time' which apparently is identical to time -p
– Tyler Durden
Jan 28 at 0:32
On my system the time builtin still has a
-p option to print portable.– Jesse_b
Jan 28 at 0:46
On my system the time builtin still has a
-p option to print portable.– Jesse_b
Jan 28 at 0:46
add a comment |
3 Answers
3
active
oldest
votes
While Jesse_b is correct about how shells generally look up commands, there's an easier fix.
time --version
Bash, ksh, zsh, and I believe a few other common shells will treat a leading backslash on a command with no path as 'skip to looking into the PATH for this thing.'
Also, knowing what the time builtin is, we could also get around this by running
time time --version
After all, the reason for the command not found error rather than a no such option error is because the shell builtin just runs the command that follows and checks how long it took to run when it finishes... which is the same thing that /bin/time does.
If you're expecting time to take arguments... are you wanting to find out what time it is? Because that's the date command.
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
add a comment |
When looking for a command the shell uses the following preference:
- aliases
- Parameter expansion, command substitution, arithmetic expansion, and quote removal before being assigned to the variable
- functions
- BUILTIN commands
- HASH table
- Search
PATH
So the time keyword will be used with preference over the installed version of time presumably found in your PATH. You can overcome this with an alias, such as:
alias time=/usr/bin/time
(ensure the path is specific to whatever location you have installed time)
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
add a comment |
Use:
command builtin type time
to see which version of time you're running.
This is the paranoid version - usually just type time is sufficient, but the above will avoid situations where alias type=echo.
To see all binary versions of time in your $PATH, use which -a time.
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
While Jesse_b is correct about how shells generally look up commands, there's an easier fix.
time --version
Bash, ksh, zsh, and I believe a few other common shells will treat a leading backslash on a command with no path as 'skip to looking into the PATH for this thing.'
Also, knowing what the time builtin is, we could also get around this by running
time time --version
After all, the reason for the command not found error rather than a no such option error is because the shell builtin just runs the command that follows and checks how long it took to run when it finishes... which is the same thing that /bin/time does.
If you're expecting time to take arguments... are you wanting to find out what time it is? Because that's the date command.
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
add a comment |
While Jesse_b is correct about how shells generally look up commands, there's an easier fix.
time --version
Bash, ksh, zsh, and I believe a few other common shells will treat a leading backslash on a command with no path as 'skip to looking into the PATH for this thing.'
Also, knowing what the time builtin is, we could also get around this by running
time time --version
After all, the reason for the command not found error rather than a no such option error is because the shell builtin just runs the command that follows and checks how long it took to run when it finishes... which is the same thing that /bin/time does.
If you're expecting time to take arguments... are you wanting to find out what time it is? Because that's the date command.
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
add a comment |
While Jesse_b is correct about how shells generally look up commands, there's an easier fix.
time --version
Bash, ksh, zsh, and I believe a few other common shells will treat a leading backslash on a command with no path as 'skip to looking into the PATH for this thing.'
Also, knowing what the time builtin is, we could also get around this by running
time time --version
After all, the reason for the command not found error rather than a no such option error is because the shell builtin just runs the command that follows and checks how long it took to run when it finishes... which is the same thing that /bin/time does.
If you're expecting time to take arguments... are you wanting to find out what time it is? Because that's the date command.
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
While Jesse_b is correct about how shells generally look up commands, there's an easier fix.
time --version
Bash, ksh, zsh, and I believe a few other common shells will treat a leading backslash on a command with no path as 'skip to looking into the PATH for this thing.'
Also, knowing what the time builtin is, we could also get around this by running
time time --version
After all, the reason for the command not found error rather than a no such option error is because the shell builtin just runs the command that follows and checks how long it took to run when it finishes... which is the same thing that /bin/time does.
If you're expecting time to take arguments... are you wanting to find out what time it is? Because that's the date command.
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
answered Jan 28 at 3:18
Ed GrimmEd Grimm
4987
4987
add a comment |
add a comment |
When looking for a command the shell uses the following preference:
- aliases
- Parameter expansion, command substitution, arithmetic expansion, and quote removal before being assigned to the variable
- functions
- BUILTIN commands
- HASH table
- Search
PATH
So the time keyword will be used with preference over the installed version of time presumably found in your PATH. You can overcome this with an alias, such as:
alias time=/usr/bin/time
(ensure the path is specific to whatever location you have installed time)
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
add a comment |
When looking for a command the shell uses the following preference:
- aliases
- Parameter expansion, command substitution, arithmetic expansion, and quote removal before being assigned to the variable
- functions
- BUILTIN commands
- HASH table
- Search
PATH
So the time keyword will be used with preference over the installed version of time presumably found in your PATH. You can overcome this with an alias, such as:
alias time=/usr/bin/time
(ensure the path is specific to whatever location you have installed time)
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
add a comment |
When looking for a command the shell uses the following preference:
- aliases
- Parameter expansion, command substitution, arithmetic expansion, and quote removal before being assigned to the variable
- functions
- BUILTIN commands
- HASH table
- Search
PATH
So the time keyword will be used with preference over the installed version of time presumably found in your PATH. You can overcome this with an alias, such as:
alias time=/usr/bin/time
(ensure the path is specific to whatever location you have installed time)
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
When looking for a command the shell uses the following preference:
- aliases
- Parameter expansion, command substitution, arithmetic expansion, and quote removal before being assigned to the variable
- functions
- BUILTIN commands
- HASH table
- Search
PATH
So the time keyword will be used with preference over the installed version of time presumably found in your PATH. You can overcome this with an alias, such as:
alias time=/usr/bin/time
(ensure the path is specific to whatever location you have installed time)
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
edited Jan 28 at 15:04
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
answered Jan 27 at 23:49
Jesse_bJesse_b
13.2k23369
13.2k23369
add a comment |
add a comment |
Use:
command builtin type time
to see which version of time you're running.
This is the paranoid version - usually just type time is sufficient, but the above will avoid situations where alias type=echo.
To see all binary versions of time in your $PATH, use which -a time.
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
add a comment |
Use:
command builtin type time
to see which version of time you're running.
This is the paranoid version - usually just type time is sufficient, but the above will avoid situations where alias type=echo.
To see all binary versions of time in your $PATH, use which -a time.
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
add a comment |
Use:
command builtin type time
to see which version of time you're running.
This is the paranoid version - usually just type time is sufficient, but the above will avoid situations where alias type=echo.
To see all binary versions of time in your $PATH, use which -a time.
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
Use:
command builtin type time
to see which version of time you're running.
This is the paranoid version - usually just type time is sufficient, but the above will avoid situations where alias type=echo.
To see all binary versions of time in your $PATH, use which -a time.
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
edited Jan 29 at 9:12
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
answered Jan 28 at 3:45
Tom HaleTom Hale
7,24033999
7,24033999
add a comment |
add a comment |
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2
timeis a shell keyword, you probably have to point to the full path of the installed time to use it:/usr/bin/time --versionor maybe alias it.– Jesse_b
Jan 27 at 23:42
Is it possible you already have an alias for
time='time -p'that would explain the portable format?– Jesse_b
Jan 28 at 0:05
@Jesse_b no alias. I think it is using the bash keyword 'time' which apparently is identical to time -p
– Tyler Durden
Jan 28 at 0:32
On my system the time builtin still has a
-poption to print portable.– Jesse_b
Jan 28 at 0:46