10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello;
I have a simple loop filtering a log:
for LU in $(< LU-list-Final)
do
OUT=$(grep -B1 $LU cibc-src-ip.cap |egrep 'IP 16|IP 19|IP 15' |awk -F">" '{print $1}')
if ; then
echo " LU $LU was accessed by ===============> $OUT "
echo ""
fi
done
The current output snippet looks like... (2 Replies)
Discussion started by: delphys
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2. Shell Programming and Scripting
I need a Korn shell script which does the folllowing:-
If there is one "|" (pipe) delimited file so, the script should check the 5th field to be blank or not. if it is a blank tht entire line of the file should be redirected to another file. if the 5th field is not blank it should pass that.
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3. UNIX for Dummies Questions & Answers
Hi all,
Here is my problem:
I'm testing a login script for our mac Machines. This script output's in a csv file.
The login script looks like this:
echo "${computername}|${data1}|${data2}|${data3}" >> file.csv
The csv file looks like this:
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Discussion started by: mattiasvdm
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4. UNIX for Dummies Questions & Answers
Hi i m running a command
watch -n 1 -d netstat -i to see the packet drops every 1 second.
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5. Shell Programming and Scripting
#!/bin/gawk -f
BEGIN{}
{if ($0~/<a/ || $0~/<img/)
link=link+1
}
{if ($0~/<a/ || $0~/<img/)
cnt++
}
{if ($0~/<a/ && $0~/http/ )
weblink++
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{if ($0~/<img/)
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{if ($0~/<a/ && $0!~/http/)
downloadlink++
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6. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
something is wrong with my output
2. Relevant commands, code, scripts, algorithms:
it has something to do... (1 Reply)
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7. Programming
Hey guys, i am having problem with displaying my text. my text file is displayed in such a way and is called test.......
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8. Shell Programming and Scripting
I would like to keep the complete lines in the output, but my script adds carriage returns for each space (e.g. keep BRITISH AIRWAYS on one line in the output):
File1=
BAW
BRITISH AIRWAYS
RYR
RYAN AIR
for i in $(cat File1)
do
echo $i
done
Output:
BAW
BRITISH
AIRWAYS
RYR... (4 Replies)
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9. Shell Programming and Scripting
When i use the following command to get only the ip address from a file then i get a whole sentence and not only the ip address which i want.
here is the script i am using:
grep '^\{1,3\}\.\{1,3\}\.\{1,3\}\.\{1,3\}$'
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Many blogs provide commentary or... (2 Replies)
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KILLALL(1) User Commands KILLALL(1)
NAME
killall - kill processes by name
SYNOPSIS
killall [-Z, --context pattern] [-e, --exact] [-g, --process-group] [-i, --interactive] [-n, --ns PID] [-o, --older-than TIME]
[-q, --quiet] [-r, --regexp] [-s, --signal SIGNAL, -SIGNAL] [-u, --user user] [-v, --verbose] [-w, --wait] [-y, --younger-than TIME]
[-I, --ignore-case] [-V, --version] [--] name ...
killall -l
killall -V, --version
DESCRIPTION
killall sends a signal to all processes running any of the specified commands. If no signal name is specified, SIGTERM is sent.
Signals can be specified either by name (e.g. -HUP or -SIGHUP) or by number (e.g. -1) or by option -s.
If the command name is not regular expression (option -r) and contains a slash (/), processes executing that particular file will be
selected for killing, independent of their name.
killall returns a zero return code if at least one process has been killed for each listed command, or no commands were listed and at least
one process matched the -u and -Z search criteria. killall returns non-zero otherwise.
A killall process never kills itself (but may kill other killall processes).
OPTIONS
-e, --exact
Require an exact match for very long names. If a command name is longer than 15 characters, the full name may be unavailable (i.e.
it is swapped out). In this case, killall will kill everything that matches within the first 15 characters. With -e, such entries
are skipped. killall prints a message for each skipped entry if -v is specified in addition to -e,
-I, --ignore-case
Do case insensitive process name match.
-g, --process-group
Kill the process group to which the process belongs. The kill signal is only sent once per group, even if multiple processes
belonging to the same process group were found.
-i, --interactive
Interactively ask for confirmation before killing.
-l, --list
List all known signal names.
-n, --ns
Match against the PID namespace of the given PID. Use 0 to match against all namespaces. The default is to match against the current
PID namespace.
-o, --older-than
Match only processes that are older (started before) the time specified. The time is specified as a float then a unit. The units
are s,m,h,d,w,M,y for seconds, minutes, hours, days, weeks, Months and years respectively.
-q, --quiet
Do not complain if no processes were killed.
-r, --regexp
Interpret process name pattern as a POSIX extended regular expression, per regex(3).
-s, --signal, -SIGNAL
Send this signal instead of SIGTERM.
-u, --user
Kill only processes the specified user owns. Command names are optional.
-v, --verbose
Report if the signal was successfully sent.
-V, --version
Display version information.
-w, --wait
Wait for all killed processes to die. killall checks once per second if any of the killed processes still exist and only returns if
none are left. Note that killall may wait forever if the signal was ignored, had no effect, or if the process stays in zombie
state.
-y, --younger-than
Match only processes that are younger (started after) the time specified. The time is specified as a float then a unit. The units
are s,m,h,d,w,M,y for seconds, minutes, hours, days, weeks, Months and years respectively.
-Z, --context
(SELinux Only) Specify security context: kill only processes having security context that match with given extended regular expres-
sion pattern. Must precede other arguments on the command line. Command names are optional.
FILES
/proc location of the proc file system
KNOWN BUGS
Killing by file only works for executables that are kept open during execution, i.e. impure executables can't be killed this way.
Be warned that typing killall name may not have the desired effect on non-Linux systems, especially when done by a privileged user.
killall -w doesn't detect if a process disappears and is replaced by a new process with the same PID between scans.
If processes change their name, killall may not be able to match them correctly.
killall has a limit of names that can be specified on the command line. This figure is the size of an unsigned long multiplied by 8. For
most 32 bit systems the limit is 32 and similarly for a 64 bit system the limit is usually 64.
SEE ALSO
kill(1), fuser(1), pgrep(1), pidof(1), pkill(1), ps(1), kill(2), regex(3).
psmisc 2017-06-12 KILLALL(1)