Controlling user input Post: 303038294

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Getting user input

I am trying to create a shell (ksh) which has two "read" commands, one which reads a line from a file and another which is inside a loop that reads user input from a keyboard. However, the "read" command inside the loop uses the input from the file and it does not get the user input from keyboard....

2. UNIX for Dummies Questions & Answers

accept user input?

how would i accept user input from the keyboard?

3. Shell Programming and Scripting

Question about user input

Hello all, How can i have a user input that reads like this: echo -n "Please enter a & b:" 10 20 read a read b echo $a echo $b 10 20 right now i have divided it into two echos, like echo -n "a: " echo -n "b: "

4. UNIX for Dummies Questions & Answers

Validating user input

I'm trying to set up a script that takes user input and validates that the user input was entered correctly. So far I have this: while : do echo "Please enter your name." read NAME if then echo "You have not entered a name." echo...

5. Shell Programming and Scripting

User input - Perl need Help

If I want all user input to start with " : " if not display error or what I asking is how to do if statement that control a first letter of string that we want to start with. and not worry about the rest Thank

6. Shell Programming and Scripting

How to get the user input recursively until the user provides valid input

Hi, echo "Enter file name of input file list along with absolute path : " read inputFileList if then for string in `cat inputFileList` do echo $string done else echo " file does not exist" fi From the above code, if the user enters a invalid file...

7. Shell Programming and Scripting

Script interacts with user , based on user input it operates

i have a script which takes input from user, if user gives either Y/y then it should continue, else it should quit by displaying user cancelled. #!/bin/sh echo " Enter your choice to continue y/Y OR n/N to quit " read A if then echo " user requested to continue " ##some commands...

8. Shell Programming and Scripting

How to validate user's input..?

$Input_filename=$ARGV; if (!-d $Input_filename && ! -e $Input_filename) { print "USAGE: Please enter '$ABCD/def/dsed.txt' as an arguement \n"; exit; } 1. Input Is suppose to be something like "$ABCD/def/dsed.txt". if the input is wrong the script should throw an ERROR message....

9. Red Hat

"rhgb quiet" controlling the display of commands in single user mode ?"rhgb quiet" controlling the d

Why does removing "rhgb quiet" from the kernel boot parameters control whether or not the commands I enter are displayed in single user mode ? For instance, if I do not remove "rhgb quiet", when I am in single user mode, whatever command I type will not be displayed on the screen. The...

10. Shell Programming and Scripting

User input and run awk using the input

I am trying to allow a user to enter in text and then store that text in a variable $gene to run in an awk command in which those values are used to run some calculations. I am getting syntax errors however, when I try. Thank you :). The awk runs great if it is a pre-defined file that is used,...

LEARN ABOUT OSX

execsnoop

execsnoop(1m)							   USER COMMANDS						     execsnoop(1m)

NAME

       execsnoop - snoop new process execution. Uses DTrace.

SYNOPSIS

       execsnoop [-a|-A|-ejhsvZ] [-c command]

DESCRIPTION

       execsnoop prints details of new processes as they are executed.	Details such as UID, PID and argument listing are printed out.

       This  program  is  very	useful	to examine short lived processes that would not normally appear in a prstat or "ps -ef" listing. Sometimes
       applications will run hundreds of short lived processes in their normal startup cycle, a behaviour that is easily monitored with execsnoop.

       Since this uses DTrace, only users with root privileges can run this command.

OPTIONS

       -a     print all data

       -A     dump all data, space delimited

       -e     safe output, parseable. This prevents the ARGS field containing "
"s, to assist postprocessing.

       -j     print project ID

       -s     print start time, us

       -v     print start time, string

       -Z     print zonename

       -c command
	      command name to snoop

EXAMPLES

       Default output, print processes as they are executed,
	      # execsnoop

       Print human readable timestamps,
	      # execsnoop -v

       Print zonename,
	      # execsnoop -Z

       Snoop this command only,
	      # execsnoop -c ls

FIELDS

       UID    User ID

       PID    Process ID

       PPID   Parent Process ID

       COMM   command name for the process

       ARGS   argument listing for the process

       ZONE   zonename

       PROJ   project ID

       TIME   timestamp for the exec event, us

       STRTIME
	      timestamp for the exec event, string

DOCUMENTATION

       See the DTraceToolkit for further documentation under the Docs directory. The DTraceToolkit docs may include full worked examples with ver-
       bose descriptions explaining the output.

EXIT

       execsnoop will run forever until Ctrl-C is hit.

AUTHOR

       Brendan Gregg [Sydney, Australia]

SEE ALSO

       dtrace(1M), truss(1)

version 1.20							   Jul 02, 2005 						     execsnoop(1m)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Getting user input

Discussion started by: stevefox

2. UNIX for Dummies Questions & Answers

accept user input?

Discussion started by: JamieMurry

3. Shell Programming and Scripting

Question about user input

Discussion started by: rrahmegni

4. UNIX for Dummies Questions & Answers

Validating user input

Discussion started by: fufaso