大约有 11,700 项符合查询结果（耗时：0.0061秒） [XML]
How to make “if not true condition”?
I would like to have the echo command executed when cat /etc/passwd | grep "sysa" is not true.
6 Answers
...
How can I change my Cygwin home folder after installation?
...de for details.
If you installed Cygwin prior to 1.7.34 or have run its mkpasswd utility so that you have an /etc/passwd file, you can change your Cygwin home directory by editing your user's entry in that file. Your home directory is the second-to-last element on your user's line in /etc/passwd.¹...
How do I list all cron jobs for all users?
...
You would have to run this as root, but:
for user in $(cut -f1 -d: /etc/passwd); do crontab -u $user -l; done
will loop over each user name listing out their crontab. The crontabs are owned by the respective users so you won't be able to see another user's crontab w/o being them or root.
Ed...
How can you run a command in bash over until success
...
until passwd
do
echo "Try again"
done
or
while ! passwd
do
echo "Try again"
done
share
|
improve this answer
|
...
How to automatically add user account AND password with a Bash script?
...
You can run the passwd command and send it piped input. So, do something like:
echo thePassword | passwd theUsername --stdin
share
|
imp...
Read lines from a file into a Bash array [duplicate]
...t newlines/CR
$ IFS=$'\r\n' GLOBIGNORE='*' command eval 'XYZ=($(cat /etc/passwd))'
$ echo "${XYZ[5]}"
sync:x:5:0:sync:/sbin:/bin/sync
Also note that you may be setting the array just fine but reading it wrong - be sure to use both double-quotes "" and braces {} as in the example above
Edit:
...
How to list all users in a Linux group?
... for your environment.
Edit 2: Someone in passing reminded me that getent passwd will return a list of all users on the system including ones from LDAP/NIS/etc., but getent group still will still miss users that are members only via the default group entry, so that inspired me to write this quick h...
How to check for file existence [duplicate]
...chris you are wrong true and false => false ` >> File.file?('/etc/passwd') => true >> File.file?('/etc/') => false >> File.exists?('/etc/') => true >> File.exists?('/etc/passwd') => true >> File.file?('/etc/passwd') and File.exists?('/etc/passwd')`
...
How to retrieve absolute path given relative
...adlink -e in tandem with dirname.
$(dirname $(readlink -e ../../../../etc/passwd))
yields
/etc/
And then you use dirname's sister, basename to just get
the filename
$(basename ../../../../../passwd)
yields
passwd
Put it all together..
F=../../../../../etc/passwd
echo "$(dirname $(readl...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
.... When using ["/bin/cat"] as entrypoint and then doing docker run img /etc/passwd, you get it, /etc/passwd is the command and is passed to the entrypoint so the end result execution is simply /bin/cat /etc/passwd.
Another example would be to have any cli as entrypoint. For instance, if you have a r...