I have been trying to run the usr/bin/time command in my terminal (Bash) with the verbose flag --verbose or -v but have repeatedly been getting this error:
/usr/bin/time: illegal option -- v
usage: time [-lp] command.
The command I have been running looks like basically like this:
/usr/bin/time -v python practice.py
Any ideas how to get this to work properly on a Mac? (I have OS X Yosemite)?
If you have homebrew, you can get GNU time by installing the gnu-time package:
brew install gnu-time
After that, it’s available as the gtime command:
$ gtime
Usage: gtime [-apvV] [-f format] [-o file] [--append] [--verbose]
[--portability] [--format=format] [--output=file] [--version]
[--help] command [arg...]
The case is similar for a lot of other homebrew-packaged GNU utilities for OSX; e.g., you can get the GNU df command with gdf, du with gdu, readlink with greadlink, etc.
The homebrew package that has most of those is coreutils, which installs about a hundred different GNU-flavored commands. Other useful packages: findutils, gnu-sed, gnu-tar.
If you don’t have homebrew installed yet, you can get it with just a single command:
Command to download and install homebrew
ruby -e "$(curl -fsSL\
https://raw.githubusercontent.com/Homebrew/install/master/install)"
I think looking at the man page the verbose flag is GNU only. Unfortunately, OSX implementation simply differs.
Related
Recently, I seen a command of pip install -v
actually it is
$ git clone https://github.com/NVIDIA/apex
$ cd apex
$ pip install -v --no-cache-dir --global-option="--cpp_ext" --global-option="--cuda_ext" ./
I usually command pip install something
But what is pip install -v?
-v or we can can also use --verbose. Both are same.
-v is used when you want to use or expressed something in more words than are needed.
-v Give more output. Option is additive, and can be used up to 3 times.
I am trying to install zfs through shell script while installation I am getting some error so, to automate it fully, I want to get the version to be installed from error itself. For all other commands I am getting the error in one variable but for one command its not coming at all. I tried every solution possible.
I need output of this command
sploutput=$(sudo dkms install -m spl -v $version)
echo $sploutput
echo $sploutput # This is giving nothing.
I tried wrapping it around string also like "sploutput=$(sudo dkms install -m spl -v $version)"
echo "{sploutput}"
Nothing seems to work.
sploutput=$(sudo dkms install -m spl -v $version)
echo $sploutput
it might be because the dkms install outputs on STDERR and not on STDOUT, and with the command you're using, you're only getting STDOUT output in the variable. To take both, you can try:
sploutput=$(sudo dkms install -m spl -v $version 2>&1)
to redirect STDERR into STDOUT.
As per ZMO's answer: try running sudo dkms install -m spl -v $version
See, what is it returning? : STDERR or STDOUT.
In case, if it fails, it won't show up anything in sploutput.
It write only STDOUT to the variable.
Use 2>&1(to write Standard error to standard output).
You can refer IO redirection
You can use following:
sploutput=$(sudo dkms install -m spl -v $version 2>&1)
echo $sploutput
I'm a beginner in bash script and cannot solve the following problem: I have a file where each line is a xml file. I would like to divide each line into several lines.
For instance, I would like to put the following line:
<LumiBlockCollection><Run>201556</Run><LBRange Start="1020" End="1030"/></LumiBlockCollection>
into the format:
<LumiBlockCollection>
<Run>201556</Run>
<LBRange Start="1020" End="1030"/>
</LumiBlockCollection>
Does anyone know how to solve this problem?
In general, for a robust solution that works with varying input data, you should use an XML parser for this task:
A solution based on xmllint - xmllint is a standard utility on OS X and some Linux distros (e.g., Fedora):
echo '<LumiBlockCollection><Run>201556</Run><LBRange Start="1020" End="1030"/></LumiBlockCollection>' \
| XMLLINT_INDENT= xmllint --format - | tail -n +2
If your Linux distro does not come with xmllint, chances are that it can be installed with your platform's package manager; e.g., on Debian-based distros such as Ubuntu:
sudo apt-get install libxml2-utils
Another solution, based on third-party utility xmlstarlet:
echo '<LumiBlockCollection><Run>201556</Run><LBRange Start="1020" End="1030"/></LumiBlockCollection>' \
| xmlstarlet fo --omit-decl --noindent
Obtaining xmlstarlet:
OSX: Install via Homebrew with brew install xmlstarlet
Linux: chances are that it can be installed with your platform's package manager; e.g., on Debian-based distros such as Ubuntu: sudo apt-get install xmlstarlet
Here's a simple solution using sed. Note that if you have CDATA sections, this will place them on their own line:
$ xml='<LumiBlockCollection><Run>201556</Run><LBRange Start="1020" End="1030"/></LumiBlockCollection>'
$ echo $xml | sed 's/></>\n</g'
<LumiBlockCollection>
<Run>201556</Run>
<LBRange Start="1020" End="1030"/>
</LumiBlockCollection>
$
I'm writing some small bash scripts for copiyng certain files/directories in GNU/Linux and Solaris. Everything is OK in Linux, but cp command hasn't the same options in Linux and Solaris.
Copy command is something like this:
cp -ruv $source $dest
Unfortunately I don't know how to achieve copy verbose and copy update in Solaris. Any idea?
Thanks
Unfortunately, cp under Solaris doesn't have that option. man solaris should reveal that.
Are you comfortable making your script depend on rsync?
Or, if possible, you can install the coreutils package and use GNU's cp.
I ran into a similar issue myself and found that gcp takes care of it too. I've made installing coreutils part of my standard system setup.
I run these on a new Solaris install:
pkgadd -d http://get.opencsw.org/now
pkgutil -U
pkgutil -i -y coreutils
pkgutil -a vim
pkgutil -i -y vim
pkgutil -i -y findutils
Remember to add the path - and the documentation path - to your profile, and possibly to the system profile at /etc/profile:
# Set the program path
PATH=$PATH:/usr/sfw/bin:/usr/sfw/sbin:/usr/openwin/bin:/opt/csw/bin:/usr/ccs/bin:/usr/local/bin:/usr/local
export PATH
# Set the documentation path
MANPATH="$MANPATH:/usr/share/man:/opt/sfw/man:/opt/csw/man"
export MANPATH
It sounds like you might be new to Solaris - as I am relatively new. I also do these, which shouldn't affect anything.
I set VIM as the default editor instead of VI - it's compatible, but has more features, including ANSI color, and some terminal emulators will pass your mouse clicks and scrolling through for even more flexibility:
# Set the default editor
EDITOR=vim
export EDITOR
Then if you are still using the default prompt that doesn't say anything, you might want to add some information - this version requires a Bash shell:
# Set the command prompt, which includes the username, host name, and the current path.
PS1='\u#\h:\w>'
export PS1
To recreate verbose mode, you can tee the output to the controlling terminal (/dev/tty) while the stdoout output of tee itself is passed to cp via xargs.
find /some/source/directory -type f | \
tee /dev/tty | xargs -I {} cp {} /copy/to/this-directory/
Replace the find with whatever you like, so long as it passes the paths to the files to be copied through the pipe to tee.
Tested on a standard Solaris 10 system without extra GNU utils.
I installed rvm 1.9.3 and now whenever I switch to a directory containing a .rvmrc, I get a perl error message:
~/example$ cd .. && cd example
perl version 5.12.3 can't run /usr/bin/shasum. Try the alternative(s):
/usr/bin/shasum5.10.0 (uses perl 5.10.0)
Run "man perl" for more information about multiple version support in
Mac OS X.
You may try this dirty approach. This approach will skip those check and directly use shasum in your binary directory
$ cd /usr/bin
$ ls shasum*
shasum shasum5.10.0
$ mv /usr/bin/shasum /usr/bin/your_backup_shasum
$ ln -s shasum5.10.0 shasum