Insert title as output of command to appended file if no output from command
I am using UNIX to create a script on our system. I have setup my commands to append their output to an outage file. However, some of the commands return no output and so I would like something to take their place.
What I need
The following command is placed at the prompt:
If there is no alarm that matches BATT, I still want a title to append to the outagereport vi file. Such as, Zero Battery Alarms
How can this be done?
Python of script so far:
Last edited by Don Cragun; 06-26-2015 at 03:46 AM..
Reason: Add CODE and ICODE tags.
Hi folks,
Please advise which command/command line shall I run;
1) to display the command and its output on console
2) simultaneous to save the command and its output on a file
I tried tee command as follows;
$ ps aux | grep mysql | tee /path/to/output.txt
It displayed the... (7 Replies)
Hi
We are having a requirement where one shell script, say a.sh (which uses Java and connects to Oracle database using JDBC) keeps on running everytime. I created a wrapper (to check whether a.sh is running and if not then to start it) and scheduled it in the crontab. Now all the output from... (3 Replies)
Hi
I am trying to get the output of ls into a file with names seaparated with comma and no spaces.
Here is the content of my dir:
ls
file1 file2 file3 file4this is what I tried:
ls -m > list.txtthe file 'list.txt' looks like:
file1, file2, file3, file4, list.txtI... (25 Replies)
Dear Master.
Help me to command to out put.
Ex log.
"<?xml version=""1.0"" encoding=""UTF-10"" ?><anova-test-bom>
<txid>17251032659</txid>
<authentication>
<user>admin</user>
<password>Amrduoi</password>
</authentication>
<destination>
<msisdn>1111111</msisdn>
... (2 Replies)
hi ,
i am using iostat -nmzx 1 | awk '{ print $4 }' command to get the i/o rates of disks.
but i want command output in a file , how can i capture , this is some what difficult because command output is keep on changing , any way i have to get total output of the command .
please help me .... (1 Reply)
HI Guys,
I hope you are well. I am trying to write a script that gets executed every time i open a shell (cshell). I have two questions about that
1) I need to enter these commands
$ echo $DISPLAY
$ setenv $DISPLAY output_of_echo_$display_command
How can i write a... (2 Replies)
How can I insert the command executed on the shell into the first line of my output file?
For example if I execute;
zcat *.gz |grep “User5501” > users.out
How can I make my users.out look like;
zcat *.gz |grep “User5501” > users.out
User5501 PA
User5501 UA
User5501 ZA... (3 Replies)
I ran the following command.
cat abc.c > abc.c
I got message the following message from command cat:
cat: abc.c : input file is same as the output file
How the command came to know of the destination file name as the command is sending output to standard file. (3 Replies)
Hi.
Before I've post this question, I have spent hours looking for the solutions but to no avail. Because I think it is possible but I just don't know what is the right keyword to search for.
Ok, basically what I want to achieve is really simple.
It's just that I don't want to write... (20 Replies)
Hi,
Last 2 weeks I have searched many forums and i haven't found the answer for the question:
How to get all command output to Putty title?
Needed it for other programs to know when some jobs on a server is done and is it done right or wrong. Plink stdout and stdin wasn't working, i used many... (1 Reply)
Discussion started by: domagaj
1 Replies
LEARN ABOUT CENTOS
doessaveunders
BlackPixelOfScreen(3) XLIB FUNCTIONS BlackPixelOfScreen(3)NAME
BlackPixelOfScreen, WhitePixelOfScreen, CellsOfScreen, DefaultColormapOfScreen, DefaultDepthOfScreen, DefaultGCOfScreen, DefaultVisualOf-
Screen, DoesBackingStore, DoesSaveUnders, DisplayOfScreen, XScreenNumberOfScreen, EventMaskOfScreen, HeightOfScreen, HeightMMOfScreen, Max-
CmapsOfScreen, MinCmapsOfScreen, PlanesOfScreen, RootWindowOfScreen, WidthOfScreen, WidthMMOfScreen - screen information functions and
macros
SYNTAX
unsigned long BlackPixelOfScreen(Screen *screen);
unsigned long WhitePixelOfScreen(Screen *screen);
int CellsOfScreen(Screen *screen);
Colormap DefaultColormapOfScreen(Screen *screen);
int DefaultDepthOfScreen(Screen *screen);
GC DefaultGCOfScreen(Screen *screen);
Visual *DefaultVisualOfScreen(Screen *screen);
int DoesBackingStore(Screen *screen);
Bool DoesSaveUnders(Screen *screen);
Display *DisplayOfScreen(Screen *screen);
int XScreenNumberOfScreen(Screen *screen);
long EventMaskOfScreen(Screen *screen);
int HeightOfScreen(Screen *screen);
int HeightMMOfScreen(Screen *screen);
int MaxCmapsOfScreen(Screen *screen);
int MinCmapsOfScreen(Screen *screen);
int PlanesOfScreen(Screen *screen);
Window RootWindowOfScreen(Screen *screen);
int WidthOfScreen(Screen *screen);
int WidthMMOfScreen(Screen *screen);
ARGUMENTS
screen Specifies the appropriate Screen structure.
DESCRIPTION
The BlackPixelOfScreen macro returns the black pixel value of the specified screen.
The WhitePixelOfScreen macro returns the white pixel value of the specified screen.
The CellsOfScreen macro returns the number of colormap cells in the default colormap of the specified screen.
The DefaultColormapOfScreen macro returns the default colormap of the specified screen.
The DefaultDepthOfScreen macro returns the default depth of the root window of the specified screen.
The DefaultGCOfScreen macro returns the default GC of the specified screen, which has the same depth as the root window of the screen.
The DefaultVisualOfScreen macro returns the default visual of the specified screen.
The DoesBackingStore macro returns WhenMapped, NotUseful, or Always, which indicate whether the screen supports backing stores.
The DoesSaveUnders macro returns a Boolean value indicating whether the screen supports save unders.
The DisplayOfScreen macro returns the display of the specified screen.
The XScreenNumberOfScreen function returns the screen index number of the specified screen.
The EventMaskOfScreen macro returns the root event mask of the root window for the specified screen at connection setup.
The HeightOfScreen macro returns the height of the specified screen.
The HeightMMOfScreen macro returns the height of the specified screen in millimeters.
The MaxCmapsOfScreen macro returns the maximum number of installed colormaps supported by the specified screen.
The MinCmapsOfScreen macro returns the minimum number of installed colormaps supported by the specified screen.
The PlanesOfScreen macro returns the number of planes in the root window of the specified screen.
The RootWindowOfScreen macro returns the root window of the specified screen.
The WidthOfScreen macro returns the width of the specified screen.
The WidthMMOfScreen macro returns the width of the specified screen in millimeters.
SEE ALSO AllPlanes(3), ImageByteOrder(3), IsCursorKey(3)
Xlib - C Language X Interface
X Version 11 libX11 1.6.0 BlackPixelOfScreen(3)