command to run programs and summarize their resources usage, be it CPU time/usage, memory/swap use, IO, pagefaults, etc.
Questions tagged [time-command]
9 questions
92
votes
3 answers
Why doesn't the `time` command work with any option?
I tried to use time command with -f option to format the output of time, but I get the following error:
-f: command not found
Then I tried to use other options -a, -o, etc and I get the same error. Not even time --version doesn't work (--version:…
user258266
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17
votes
1 answer
How can I automatically time commands in bash?
In tcsh, there's the variable time:
The time shell variable can be set to execute the time builtin command
after the completion of any process that takes more than a given number
of CPU seconds.
How do I do this in bash?
Eyal
- 1,191
- 1
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15
votes
3 answers
Command not found when trying to set a format for the time command
I am trying to get the time it takes to run a command, with the output in a specific format:
time -f "%E" ls -l
This is similar to the example in the man page (and on the online man page). However when I run this command I get:
-f: command not…
Isaac
- 253
- 2
- 7
14
votes
2 answers
Why does the output format of time vary depending on how I call it
It may be a newbie's question, but I don't understand how this is configured and why the output format of time command is different in these two cases:
if used via time, the output is three rows with basic info
$ time sleep 1
real 0m1.003s
user …
xaxa
- 439
- 3
- 14
11
votes
1 answer
No such file or directory when executing /usr/bin/time
I'm building my own android rom. In order to build it, I need to run
mka -j8 bacon
However, I wanted to measure the time it took to build it, so I used
/usr/bin/time -f "User\t%U\nSys\t%S\nReal\t%E\nCPU\t%P" mka -j8 bacon
This won't run, because…
P1nGu1n
- 213
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4
votes
1 answer
Why does running `time` and `/usr/bin/time` give different results?
Why does running time and /usr/bin/time give different results?
/usr/bin/time
thomas@tbdesktop:~$ /usr/bin/time -f "Elapsed time:%E" wc /etc/hosts
9 25 224 /etc/hosts
Elapsed time:0:00.04
time
thomas@tbdesktop:~$ time -f "Elapsed time:%E" wc…
Thomas Bratt
- 710
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4
votes
2 answers
Print terminal output in gedit automatically?
the command
time ./myprog
displays the time it took to run myprog on the screen. Now i would like to write this information to a text file.
How?
user2413
- 13,877
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2
votes
2 answers
How to use time command in bash, to sum sys + user time, and output it as milliseconds?
The time command returns a table like this?
real 0m1.607s
user 0m0.154s
sys 0m0.032s
I am running this inside a shell script. What's the simplest way to process time output so that I get a variable $RUNTIME which holds the sum user + sys in…
a06e
- 12,613
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1
vote
4 answers
BASH: write the output of a command to a file
I run a program multible time using a bash script, and I want it's output to be written in a file. However, I couldn't make the operator ">filename.txt" work... Here is my script:
for i in {1..10000000..10000}
do
time ./merge $i>nn
done
can…
Jim Blum
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