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Shell Programming and Scripting
Perl script help
Post 302737281 by brinix on Wednesday 28th of November 2012 04:05:50 PM
11-28-2012
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I have a question regarding running perl in the current process.
I shall demonstrate with an example.
Look at this.
sh-2.05b$ pwd
/tmp
sh-2.05b$ cat test.sh
#! /bin/sh
cd /etc
sh-2.05b$ ./test.sh
sh-2.05b$ pwd
/tmp
sh-2.05b$ . ./test.sh
sh-2.05b$ pwd
/etc
sh-2.05b$
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so in unix this command works works and shows me a list of directories
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Hi all,
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I am trying to run a perl script which needs input arguments from a parent perl script, but doesn't seem to work. Appreciate your help in this regard.
From parent.pl
$input1=123;
$input2=abc;
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and
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Hi Folks,
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main.pl
===========
print "This is my main script\n";
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Not sure what I am doing wrong here, but I can print the list with no issue. Just a blank screen with the 'do'.
#!/usr/bin/perl
open FILE, "upslist.txt";
while ($line=<FILE>){
if ($line=~/^(.*?),(.*?)$/){
#print "ups:$1 string:$2\n";
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LEARN ABOUT MINIX
fsck
FSCK(1) General Commands Manual FSCK(1) NAME
fsck, fsck1 - perform file system consistency check SYNOPSIS
fsck [-aclmrs] [device] ... OPTIONS
-a Automatically repair inconsistencies -c Check and list only the specified i-nodes -l List the files and directories in the filesytem -r Prompt user for repairs if inconsistencies are found -s List the superblock of the file system EXAMPLES
fsck /dev/hd4 # Check file system on /dev/hd4 fsck -a /dev/at0 # Automatically fix errors on /dev/at0 fsck -l /dev/fd0 # List the contents of /dev/fd0 fsck -c 2 3 /dev/hd3 # Check and list /dev/hd3 i-nodes 2 & 3 DESCRIPTION
Fsck performs consistency checks on the file systems which reside on the specified devices. Fsck1 is an alternate version for use on obso- lete V1 file systems. When either the -a or -r flags are given, the file system will be repaired if errors are found. Before running fsck on a mounted file system, it must first be unmounted. Trying to repair a mounted file system is dangerous and should not be attempted. To repair the root file system (which cannot be unmounted), first type CTRL-F9 at the console to kill any and all processes. Log back in as root, type sync to force any buffered changes to disk, run fsck on the root file system and immediately reboot the computer by typing reboot. It is necessary to kill all processes before repairing the root file system to prevent them from modifying any disk blocks while fsck is running. This is only necessary for the root file system, any other file system can simply be unmounted before it is checked. SEE ALSO
mkfs(1), mount(1). FSCK(1)