I am trying to assign list of files that created that day to a variable 'filename'
filename=`ls -ltr |grep "Mar 6" | awk '{print$9}'`
If there are no files created that day, my script just hangs, i need help with some login here.
i am also trying to figure out a way to look for files that... (3 Replies)
sorry for the title of this thread-
I figured out how to capture empty variable by using-
if
then
........
This thread originally had two parts in it (one for capturing empty variable and the other to get the date time in 14 char format). Once I figured out the solution for the first part... (6 Replies)
I'm very new to writing scripts, so here is my problem...I have the following code already written (in perl)
system "rm file2";
open(FILE2, ">file2");
open(MYINPUTFILE, "file");
while(<MYINPUTFILE>) {
my($line) = $_;
chomp($line);
print file2 "$line\n";
print... (2 Replies)
How to check the variable is empty or not?
aaa=" "
how to check aaa variable is empty or just spacing?
If only spacing inside.. it will asume it is empty.
some are 6 spacing, or 8 spacing.. as long as variable is empty with spacing..
anyone can help me? (2 Replies)
I haven't checked any installation script to see how this is done..
But I could not even do following simple task.
How do I Change existing variable value only when user enteres non-empty string. ?
#!/usr/bin/ksh
uid="scott"
# Assign new value user enters to uid, else leave it... (7 Replies)
Hi Folks,
I am trying to read input from single line from a file and pass the read variable to one of the commands. However when I run the script it keeps the variable to be empty. I can however echo the variable ( but why it is empty when it goes to the command).
Any help will be... (6 Replies)
Hello All,
I am running the below code in my script. I want if jk is empty nothing should be appened to the file total_usage.
but apparently its not happening.Kindy let me know how to do it.
###################################
jk=`ps auxf |grep -w $inputline|tr -s " "|cut -d... (0 Replies)
hi,
i want to check whether a a variable contains some value or is empty in a shell script. so if the variable contains some value i want to do some job and if the variable doesnt contain any value then i need to skip that job.
here is a sample script
read_filenames.sh contains
... (5 Replies)
Hi,
I'm writing a shell script and trying to grep a variable value, it works fine as long as there is a value in /tmp/list.out which is captured in $DSK but sometimes the file tends to be empty and that is where I'm having an issue while using grep which returns nothing. I know I can use something... (15 Replies)
Discussion started by: mbak
15 Replies
LEARN ABOUT MOJAVE
platform::shell
platform::shell(n) Tcl Bundled Packages platform::shell(n)
__________________________________________________________________________________________________________________________________________________NAME
platform::shell - System identification support code and utilities
SYNOPSIS
package require platform::shell ?1.1.4?
platform::shell::generic shell
platform::shell::identify shell
platform::shell::platform shell
_________________________________________________________________DESCRIPTION
The platform::shell package provides several utility commands useful for the identification of the architecture of a specific Tcl shell.
This package allows the identification of the architecture of a specific Tcl shell different from the shell running the package. The only
requirement is that the other shell (identified by its path), is actually executable on the current machine.
While for most platform this means that the architecture of the interrogated shell is identical to the architecture of the running shell
this is not generally true. A counter example are all platforms which have 32 and 64 bit variants and where a 64bit system is able to run
32bit code. For these running and interrogated shell may have different 32/64 bit settings and thus different identifiers.
For applications like a code repository it is important to identify the architecture of the shell which will actually run the installed
packages, versus the architecture of the shell running the repository software.
COMMANDS
platform::shell::identify shell
This command does the same identification as platform::identify, for the specified Tcl shell, in contrast to the running shell.
platform::shell::generic shell
This command does the same identification as platform::generic, for the specified Tcl shell, in contrast to the running shell.
platform::shell::platform shell
This command returns the contents of tcl_platform(platform) for the specified Tcl shell.
KEYWORDS
operating system, cpu architecture, platform, architecture
platform::shell 1.1.4 platform::shell(n)