can someone explain the meaning of the following shell commands:
1. who / wc -l
2. who / sort > user_names
3. cat students > new_students
4. current_day='date / cut -cl-3'
i would also appreciated if you could tell me some things about the umask
1. what is a good umask value and why?
2.... (2 Replies)
Hi folks,
I have written down a UNIX script which actually FTP the file to other server. What is happening now , this script is not working only for 1 server , as it is working for 32 different FTP server .
In this particular server , we are getting message “FTp:550 access denied”... (1 Reply)
i have a file having content
a|b|c
1|2|33
4|6|55
end
a|b|d
3|4|55
end
a|b|c
45|67|98
end
so i want to print 3rd field of header a|b|c and footer end.
e.g. o/p should be
33
55
98 (7 Replies)
Hello everyone, I'm new to using Linux and i am trying to create a script that will produce a list of all the files of the present working directory. So far I only have this
#!/bin/bash
cd /
ls -lt>>
I can't figure out what I am suppose to do next. (6 Replies)
I want to open a file which is in encrypted form and it consists Usernames and passwords.a custommized command is there to open the file.the command is exe of a shell script which takes arguments filename.
after opening with the command it will show four options which are ADD,update,search and... (2 Replies)
Hi,
1) Need help to write script in KSH to detect a duplicate file.
2) The original file needs to be moved from current path to a different path
3) The duplicate file should continue to stay in the same path.
Exact file names & duplicate file names are given below. Please help me at the... (7 Replies)
I work on various messages received from server and want to write a python script that can sort messages with unique flag values and give me the output in a text file.
I get these messages in the form of .zcap file from server and I use an internal tool to filter:
Step 1) Zcap file to get... (1 Reply)
Discussion started by: Vijeta Laad
1 Replies
LEARN ABOUT MOJAVE
tcl_allowexceptions
Tcl_AllowExceptions(3) Tcl Library Procedures Tcl_AllowExceptions(3)__________________________________________________________________________________________________________________________________________________NAME
Tcl_AllowExceptions - allow all exceptions in next script evaluation
SYNOPSIS
#include <tcl.h>
Tcl_AllowExceptions(interp)
ARGUMENTS
Tcl_Interp *interp (in) Interpreter in which script will be evaluated.
_________________________________________________________________DESCRIPTION
If a script is evaluated at top-level (i.e. no other scripts are pending evaluation when the script is invoked), and if the script termi-
nates with a completion code other than TCL_OK, TCL_ERROR or TCL_RETURN, then Tcl normally converts this into a TCL_ERROR return with an
appropriate message. The particular script evaluation procedures of Tcl that act in the manner are Tcl_EvalObjEx, Tcl_EvalObjv, Tcl_Eval,
Tcl_EvalEx, Tcl_GlobalEval, Tcl_GlobalEvalObj, Tcl_VarEval and Tcl_VarEvalVA.
However, if Tcl_AllowExceptions is invoked immediately before calling one of those a procedures, then arbitrary completion codes are per-
mitted from the script, and they are returned without modification. This is useful in cases where the caller can deal with exceptions such
as TCL_BREAK or TCL_CONTINUE in a meaningful way.
KEYWORDS
continue, break, exception, interpreter
Tcl 7.4 Tcl_AllowExceptions(3)