---------- Post updated at 01:31 PM ---------- Previous update was at 12:54 PM ----------
Sorry to bother you again.
When I tried this previously, I just had a standard read command.
So I would press the key and then press return and the command would be fired.
Now that have the below code instead, I can't seem to capture the keypresses correctly
I used to have
This would determine whether the user was pressing up and down, q, a number or just pressing enter.
Now when I use the same code it isn't recognising the up, down or enter keypresses.
Have you any idea what I should change to get it to work.
Just to clarify, my code looks like the following.
Any suggestions would be much appreciated.
im having trouble doing this:
i have a variable with 2 characters repeating e.g. aababbbaaaababaabbaabbba
is there a way i can search the variable for a's and b's and then change a's to b's and b's to a's?
im guessing its like getting the 1's compliment of the string
im doing this in... (2 Replies)
Can someone help me to write a script / command to read in a file, character by character, replace any unknown ASCII characters with space. then write out the file to a new filename/
Thanks! (1 Reply)
Hi,
I've made a script to grep a file
for i in `cat filename.txt`
do
strings ./binfile | grep "$i" 2>&1 > /dev/null
done
this works fine as long as in filename.txt i don't have any entries with spaces. But in my case i want to grep something with spaces like "lala tata"
and... (3 Replies)
hello all
i request you to give the solution for the following problem..
I want read the text file.and print the contents character by character..like if the text file contains google means..i want to print
g
go
goo
goog
googl
google
like this Using unix Shell scripting...
without using... (1 Reply)
Hi all,
Greetings,
I have the following scenario, The contents of main file are like :
Unix|||||forum|||||||||||||||is||||||the||best
so||||||be|||||on||||||||||||||||||||||||||||||||||||||||||||it
And i need the output in the following form:
Unix=forum=is=the=best
so=be=on=it
... (3 Replies)
I have a bash loop that waits for a single key press, then does $something depending on what $key is pressed before refreshing the screen with updated data. The problem I have is that the script will store additional key presses and chain them together causing the screen to redraw and the script... (1 Reply)
Hi friend,
I have one file , and i want to read that file character by character.
I need this script in ksh.
while using read option with -n1 am getting error.
while read -n1 c read has bad option
And if i am using below script, then if in a line has space like this ( Pallvi mahajan)... (10 Replies)
Hello everybody,
I am using Windows 10 and cygwin/bash.
I need to write a script in bash which simulates opening of a program and then press some keys such as F5, ENTER and ALT+F4.
I have written a VBScript which does the job
Set WshShell = WScript.CreateObject("WScript.Shell")... (9 Replies)
I have a csv dataset like this :
C,rs18768
G,rs13785
GA,rs1065
G,rs1801279
T,rs9274407
A,rs730012
I'm thinking of use like awk, sed to covert the dataset to this format: (if it's two character, then keep the same)
CC,rs18768
GG,rs13785
GA,rs1065
GG,rs1801279
TT,rs9274407... (7 Replies)
Discussion started by: nengcheng
7 Replies
LEARN ABOUT OSF1
nohup
nohup(1) General Commands Manual nohup(1)NAME
nohup - Runs a utility ignoring hangups and quits
SYNOPSIS
nohup utility [argument...]
Note
The C shell has a built-in version of the nohup command. If you are using the C shell, and want to guarantee that you are using the com-
mand described here, you must specify the full path /usr/bin/nohup. See the csh(1) reference page for a description of the built-in com-
mand.
STANDARDS
Interfaces documented on this reference page conform to industry standards as follows:
nohup: XCU5.0
Refer to the standards(5) reference page for more information about industry standards and associated tags.
OPTIONS
None
OPERANDS
The name of a command to be invoked. Optional arguments required by the utility specified for invokation.
DESCRIPTION
The nohup command runs utility, ignoring all hangups and QUIT signals. You can use this command to run programs in the background after
logging off the system. To run a nohup command in the background, add an & (ampersand) to the end of the command.
If nohup output is redirected to a terminal or is not redirected at all, the output is appended to the file nohup.out. If the file is cre-
ated, the permission bits are set to Owner Read and Owner Write(600). If nohup.out is not writable in the current directory, the output is
redirected to $HOME/nohup.out. If neither file can be created nor opened for appending, utility is not invoked.
If standard error is a terminal, all output written to standard error is appended to the file receiving standard output.
The nohup command accepts just one utility as an argument. To apply nohup to a pipeline or list of commands, enter the pipeline or list in
a shell script file. Then run sh as utility using the following format: nohup sh -c file
[Tru64 UNIX] You can also assign the shell file execute permission and run it as the utility in the form: nohup file
NOTES
The term utility, rather than the term command, describes the argument to nohup because shell compound commands, pipelines, special built-
in programs, and the like, cannot be handled directly. In addition, the term utility includes user application programs and shell scripts,
not just the standard utilities.
EXIT STATUS
The nohup command returns the following exit values: The specified utility was found, but could not be invoked. The error occurred in the
nohup utility or the specified utility could not be found.
The exit status is otherwise that of the utility.
EXAMPLES
To leave a command running after logging out (sh only), enter: nohup find / -print &
Shortly after you enter this, the following is displayed: 670 $ Sending output to nohup.out
The process ID number changes to the background process started by the & (ampersand), in this case, 670. The $ (dollar sign) is the
shell prompt. The message following informs you that the output from the find command is in the file nohup.out. Sending output...
You can log out after you see these messages, even if the find command has not finished yet.
If you are using csh, the built-in command nohup is executed instead of the system command. To execute the nohup system command,
you must enter an absolute path. To do the same, but redirect the standard output to a different file, enter: nohup find /
-print >filenames &
This runs the find command and stores its output in a file named filenames. Now only the process ID and prompt are displayed.
Wait for a second or two before logging out, because the nohup command takes a moment to start the command you specified. If you log
out too quickly, utility may not run at all. Once utility has started, logging out does not affect it. To run more than one com-
mand, use a shell script. For example, if you include the following shell script: comm -23 fi4 fi5 | comm -23 - fi6 | join -a1 -
fi7 > comm.out
and name it ncomm, you can run nohup for all of the commands in ncomm by entering: nohup sh ncomm
If you assign ncomm Execute permission, you can obtain the same results by issuing the command: nohup ncomm
To run this command in the background, enter: nohup ncomm &
ENVIRONMENT VARIABLES
The following environment variables affect the execution of nohup: Provides a default value for the internationalization variables that are
unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari-
ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value,
overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes
of text data as characters (for example, single-byte as opposed to multibyte characters in arguments). Determines the locale for the for-
mat and contents of diagnostic messages written to standard error. Determines the location of message catalogues for the processing of
LC_MESSAGES. Determines the search path that will be used to locate the command to be invoked.
FILES
Standard output and standard error file for nohup.
SEE ALSO
Commands: csh(1), ksh(1), nice(1), Bourne shell sh(1b), POSIX shell sh(1p)
Functions: sigaction(2)
Standards: standards(5)nohup(1)