I agree the race condition risk however, it isn't easy or even possible for regular users to replace the utilities already created in /tmp. What they might do is anticipate and create hostile alternatives before the gsrc.sh script is ever executed.
That depends on what system you're using. Some systems create a per user /tmp directory (although that is not allowed by the standards); others have a single /tmp directory shared by everyone on the system. Some system administrators set up /tmp such that anyone can remove any file in that directory and create a new file with that name anytime they want; others set the permissions on that directory so that only the owner of the file or someone running "with appropriate privileges" can remove a file. The umask setting at the time the file was created will determine who can read and write that file (if they don't have permission to just remove and replace it).
On many systems, if I create /tmp/ECHO as user dwc and set the mode to 0600 and you try to run wisecracker's script that ignores any error when using printf to set the contents of that file, then the later attempt to execute
will fail with a permission denied error trying to read the file I created.
Utilities belong in "safe" places like /bin and $HOME/bin; not in places like /tmp.
Hello,
I am working on HP-UX , and in the /etc/hosts file we have setup an alias:
aa.bb.cc.dd devmach2.unix.org devmach2 devma2v
The alias devma2v does not work. Error when pinging devma2v
ping: unknown host devma2v
For devmach2 the ping works fine , returning the correct IP... (4 Replies)
Hi All,
PF below details,
> cat run.sh
#!/usr/bin/ksh
alias ll="ls -l"
> ./run.sh
> ll
ksh: ll: not found.
Pls help on this?
Thanks in Advance,
Naga :cool: (2 Replies)
i create some alias in .cshrc file then i run source .cshrc to refresh it, the alias command work fine but when i relogin again, the alias command is not working... i need to re-run the source .cshrc command so that the alias only workable.
any idea on it? (7 Replies)
Hello, I am trying to set an alias in my .kshrc or .profile and when I do it is not setting. If I do it manually it works fine. Is there another file I should put this in? Here is the alias I am using.
alias ll='ls -ltr'
I am using solaris 9. When I type alias it does not show these... (5 Replies)
OS = Solaris 8
Issue: alias not working for root, but working for regular users
# grep root /etc/passwd
root:x:0:1:Super-User:/:/sbin/sh
# alias dir=ls
# dir
dir: not found
# alias dir="ls -l"
# dir
dir: not found
# alias dir='ls -l'
# dir
dir: not found
# alias... (2 Replies)
Hi Friends,
I have added some aliases in .bash_profile file under the root folder. Its works fine and very useful, but does not go well with cp command.
alias deploy="cd /usr/local/tomcat/webapp"
alias artifacts="cd /usr/local/artifacts"
but when i try to cp from artifacts folder... (2 Replies)
Iam facing some strange issue with alias. I have an alias file in which i have created lot of aliases as given below.
export BUILD_HOME=/apps/psr/build
export DB_HOME=/apps/psr/database
export LOGS_HOME=/apps/psr/logs
export BUILD_TEST=/apps/psr/build_dev/build_test
export... (0 Replies)
Hi,
Please assist me why HC alias is not working under this shell?
root@singapore # grep HC /.profile
alias HC='cd /var/tmp/HC/2015/`date +%B`'
root@singapore # . /.profile
Sourcing //.profile-EIS.....
root@singapore # echo $HC
root@singapore # HC
HC: not found
root@singapore # echo... (18 Replies)
I have several shell scripts which contain the nawk command.
Here is what i m doing assign the correct value to nawk as nawk is not found on a new systems.
Here is what i did.
more test.sh
] && alias nawk=/usr/bin/gawk
] && alias nawk=/usr/bin/nawk
] && alias nawk=/usr/bin/awk... (7 Replies)
Hi,
I have the following aliases:
$: alias | grep "^du="
du='du -s * 2>/dev/null | awk '\''{ printf "%4.2f-KB ==> %s \n", $1/1024 , $2 }'\'' | sort -rn'
$: alias | grep "^dutop10="
dutop10='du -s * 2>/dev/null | awk '\''{ printf "%4.2f-KB ==> %s \n", $1/1024 , $2 }'\'' | sort -rn | head... (2 Replies)
Discussion started by: newbie_01
2 Replies
LEARN ABOUT DEBIAN
i-ls
i-ls(1) General Commands Manual i-ls(1)NAME
i-ls - display file stat and checksum information for files
SYNOPSIS
i-ls [-s] filename
i-ls [-s] dirname
Specify a filename for i-ls to examine, or specify a directory with dirname to examine all the files in the directory.
-s
Do not show/calculate checksums for all regular files.
DESCRIPTION
The integrit system detects intrusion by detecting when trusted files have been altered.
integrit records information about files in a database. i-ls allows the user to see that information for live files.
The output syntax is the same as that of integrit.
EXAMPLES
i-ls /tmp/foo.txt
shows file stat attributes for the file, "/tmp/foo.txt".
i-ls /tmp
shows file stat attributes for all files in the directory, "/tmp".
i-ls -s /tmp
shows file stat attributes for all files in the directory, "/tmp", also including also checksums for all regular files.
AUTHOR
Ed L Cashin <ecashin@users.sourceforge.net>
See the integrit web site for up to date releases and information at
http://integrit.sourceforge.net/
SEE ALSO
Integrit File Verification System Manual (info), lstat(2)Version 4.1 Jul 27, 2001 i-ls(1)