How to make a loop to read the input from a file part by part?
Hi All,
We've a VDI infrastructure in AWS (AWS workspaces) and we're planning to automate the process of provisioning workspaces. Instead of going to GUI console, and launching workspaces by selecting individual users is little time consuming. Thus, I want to create them in bunches from AWS CLI (installed on centos 7). To achieve this I've created below shell script to launch the workspaces from CLI with least efforts. Please note, the ws-userlist.txt has a list of 60 users, one word per line.
Now, here, there is a limitation of above workspace creation command. It can only build maximum 25 workspaces at one execution. I wonder if there any way to make the loop read the ws-userlist.txt in such a way that it read the first 25 users and take it as input for the command and execute it. once the it get executed, loop should go back to the input file, and read next set of 25 users and execute the command. Once it get executed, loop again go back to input file, and read the last 10 usernames and run the command.
Please note, username count could vary.Sometime I may have a list of 30, sometimes it could be 55.
I've basic knowledge of shell scripting. Need your expert help on this.
Thanks in advance.
Hi,
I justs started learning Unix on my own.
I have a question:
What command can I use when I need to read in part of the file into another file?
I remember I saw it somewhere but I don't know what it is.
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a sample detailed record is :9820101 A982005000CAVG030108000000000000010169000MAR 2008
9820102 MAR 2008 D030108
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20091112091359 MED_RQACK : user_data=60173054304,100232120,20091112091359,;ask_status=0;ask_reason=OK;msg_id=20091112091319... (5 Replies)
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Name =A
xxxxxx
yyyyyy
zzzzzz
aaaaaa
bbbbbb
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I have files named with different prefixes. From each I want to extract the first line containing a specific string, and then print that line along with the prefix.
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Hello
let me explain senario.
there is a file which name is config and it store main software variable:
file main.conf contents:
update="1"
log_login="0"
allow_ports=""
deny_ports="21,22,23"
and there is a file which name is ports.txt
file ports.txt contents:
25,26,27
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while IFS= read -r dirpath ; do
echo "Hi"
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Discussion started by: mohtashims
2 Replies
LEARN ABOUT HPUX
dtwsmgetworkspacelist
DtWsmGetWorkspaceList(library call) DtWsmGetWorkspaceList(library call)
NAME
DtWsmGetWorkspaceList -- get the names of the currently defined workspaces
SYNOPSIS
#include <Dt/Wsm.h>
int DtWsmGetWorkspaceList(
Display *display,
Window root,
Atom **ppaWorkspaces,
int *pNumWorkspaces);
DESCRIPTION
The DtWsmGetWorkspaceList function works with the CDE workspace manager, dtwm(1). and returns a list of the names (converted into X atoms)
of the currently defined workspaces.
The display argument is the X display.
The root argument is the root window of the screen of interest.
The *ppaWorkspaces argument is the address of a pointer to receive the returned pointer to the workspacelist.
The pNumWorkspaces argument is the address of an integer to receive the number of elements in the workspacelist.
RETURN VALUE
Upon successful completion, the DtWsmGetWorkspaceList function returns Success and the workspace manager returns in *ppaWorkspaces the list
of atoms identifying workspaces, and returns in pNumWorkspaces the number of workspaces.
APPLICATION USAGE
If the DtWsmGetWorkspaceList function is not successful, failure may be due to a memory allocation error or failure to find the correct
workspace information (that is, the CDE workspace manager, dtwm(1), is not running). To get detailed information on the workspaces, the
application must first call the DtWsmGetWorkspaceList function to get the names of all the workspaces. Then, for each workspace in the
list, the application must call the DtWsmGetWorkspaceInfo(3) function. The application must use XtFree(3) to free data returned in *ppa-
Workspaces.
SEE ALSO
Dt/Wsm.h - DtWsm(5), dtwm(1), XtFree(3), DtWsmGetWorkspaceInfo(3).
DtWsmGetWorkspaceList(library call)