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How do I execute any command editing its file (argument) “in place” using bash?
... sponge(1), which lets you do things like this:
% sed "s/root/toor/" /etc/passwd | grep -v joey | sponge /etc/passwd
However, sponge suffers from the same problem Steve Jessop comments on here. If any of the commands in the pipeline before sponge fail, then the original file will be written over...
Read entire file in Scala?
... the party, but I'd hate for people not to know they can do "io.File("/etc/passwd").slurp" in trunk.
– psp
Aug 26 '09 at 3:48
28
...
Hiding a password in a python script (insecure obfuscation only)
...eant that you would code a feature like this and add the ability to read a passwd from a file
– Martin Beckett
Dec 10 '15 at 22:42
...
How to find out what group a given user has?
...
sh collection.sh
#!/bin/bash
HOSTNAME=`hostname -s`
for i in `cat /etc/passwd| grep -vE "nologin|shutd|hal|sync|root|false"|awk -F':' '{print$1}' | sed 's/[[:space:]]/,/g'`; do groups $i; done|sed s/\:/\,/g|tr -d ' '|sed -e "s/^/$HOSTNAME,/"> /tmp/"$HOSTNAME"_inventory.txt
sudo cat /etc/sudo...
How to pass the value of a variable to the stdin of a command?
...
(cat <<END
$passwd
END
) | command
The cat is not really needed, but it helps to structure the code better and allows you to use more commands in parentheses as input to your command.
...
How to run the sftp command with a password from Bash script?
... your file:
#!/bin/sh
HOST=<yourhostname>
USER=<someusername>
PASSWD=<yourpasswd>
cd <base directory for your put file>
lftp<<END_SCRIPT
open sftp://$HOST
user $USER $PASSWD
put local-file.name
bye
END_SCRIPT
And write/quit the vi editor after you edit the host, us...
Reading specific lines only
...above:
>>> import linecache
>>> linecache.getline('/etc/passwd', 4)
'sys:x:3:3:sys:/dev:/bin/sh\n'
Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based.
If the file might be very large, and cause problems whe...
send/post xml file using curl command line
...o the server, where 'password' is the name of the form-field to which /etc/passwd will be the input:
curl -F password=@/etc/passwd www.mypasswords.com
So in your case, this would be something like
curl -F file=@/some/file/on/your/local/disk http://localhost:8080
...
What are the uses of the exec command in shell scripts? [closed]
... without access to the shell. We could change the sign-in program in /etc/passwd, but maybe we want environment setting to be used from start-up files. So, in (say) .profile, the last statement says something like:
exec appln-program
so now there is no shell to go back to. Even if appln-progr...
UnicodeEncodeError: 'latin-1' codec can't encode character
... charset="utf8")
db = MySQLdb.connect(host="localhost", user = "root", passwd = "", db = "testdb", use_unicode=True, charset="utf8") – KyungHoon Kim Mar
13 '14 at 17:04
detail see :
class Connection(_mysql.connection):
"""MySQL Database Connection Object"""
default_cursor = cur...