The unix sleep command
sleeps for whole seconds. The code you gave sleeps for 150 millseconds. It actually takes longer than 150 milliseconds because the shell has to create a process and load perl into it, then "sleep" for 150 ms.
Specifically what is the purpose of sed?
What is f?
Why is the 'cp f $phonefile' line needed when the script ‘goes live'?
Why might that two commands following sed be commented out at the present time ( i.e., during development)?
Thanks in... (2 Replies)
I am using this line of perl code to change the file format and remove ^M at the end of each line in files:
perl -i -pe's/\r$//;' <name of file here>
Can you explain to me what this code does, and translate it into bash/awk/sed? (2 Replies)
Hi,
I saw this. But I don't know why we need this?
ls mydir > foo.txt ## I know what this will do, it will take the results and write to the file called foo.txt
ls mydir > foo.txt 2>&1 ## Don't know why we need 2>&1
Thanks. (2 Replies)
Please explain grep -A 999999. I've seen this before, it always seems to be with six 9's as well. See an example below.
grep 'regexp' -A 999999 server.log | egrep -c 'Option=\' (6 Replies)
su - keibatch -c ""date ; /usr/local/kei/batch/apb/bin/JKEIKYK4140.sh -run "&$C$6&" WSUKE100201""
Not clear about : date ; /usr/local/kei/batch/apb/bin/JKEIKYK4140.sh -run "&$C$6&" WSUKE100201
Please help (2 Replies)
Hi Forum.
I have the following script /home/user/EDW_ENV.sh to setup some environment variables as:
##### section 1 PM_HOME #####
export PC_DIR_BASE=/data/informatica/ming
export DIR_ORACLE=/data/sw/apps/oracle/Oracle_scripts
export... (4 Replies)
I have a requirement to remove all non-ascii characters from a fixed length file. I used the below command which is removing special characters but somehow the total record length is being truncated to one space less. If it is a multi-byte string then many characters at the end are being truncated.... (8 Replies)
Discussion started by: eskay
8 Replies
LEARN ABOUT OSX
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)