Sponsored Content
Full Discussion: ../ in perl and if clause
Top Forums Shell Programming and Scripting ../ in perl and if clause Post 302773023 by ptappeta on Wednesday 27th of February 2013 07:15:55 AM
Old 02-27-2013
Quote:
Originally Posted by panyam
it wil just check if the file is present or not..

if it's present , print and exit with status "1".


which file it check ?


whats the use of double dot in this context?
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

if clause

hi, pls could you help me with one program in KSH ( i have sunOS). I need to create an If clause, that prints an error message and filenames, when in a directory are found some files of null size (find . -type f -size 0 ). thanks (3 Replies)
Discussion started by: palmer18
3 Replies

2. Shell Programming and Scripting

having trouble with using if clause in AWK

The goal: I have a list of people in teams. The list looks something like this $1 = Job Position (marketing, IT, PR) $2 = Name $3 = Team Name $4 = Targeted member (somebody in field 2 targets somebody else) $5 = Employment Status (full time/part time/etc) The idea is to search through... (2 Replies)
Discussion started by: MaestroRage
2 Replies

3. Shell Programming and Scripting

Dynamic SQL for where clause

Hi, I have an app which user can query the database based on 4 criteria, that is Field1, Field2, Field3 and Field4 Mya I know how to write a dynamic SQL where I can choose to retrieve data based on their selected value. eg. where Field1=AAA eg. where Field1=AAA and Field2=BBB eg.... (1 Reply)
Discussion started by: TeSP
1 Replies

4. Shell Programming and Scripting

multiple conditions in 'if clause'

Hi, When i use the below code snippet in my shell script OFC_10.sh: if then echo "Success" exit 2 elif then echo "Failure" exit 6 I get the error message: ./OFC_10.sh: line 41: ' ./OFC_10.sh: line 45: ' Line 41 is the line where If loop starts and line 45 is... (2 Replies)
Discussion started by: shrutihardas
2 Replies

5. Shell Programming and Scripting

How to grep the where clause of a SQL?

Hi UNIX Gurus, I want to use extract the where clause of a SQL present in a file. Please suggest me how can I do it. Select * from emp where emp_id>10; cat <file_name> | grep -i "where" returns whole SQL. how can I extract only "where emp_id>10;" Thanks in advance (4 Replies)
Discussion started by: ustechie
4 Replies

6. Shell Programming and Scripting

Check a variable value through if clause

Hi guys, I am trying to check the values i have for two variables. if && ; then echo "Success"; fi Now Test1 can have any Alpha Variable and Count is a integer value. Even though we have given 'and' Condition, even one condition is sucess, i am getting the Success message. ... (11 Replies)
Discussion started by: mac4rfree
11 Replies

7. Shell Programming and Scripting

If clause in perl

HI friends , I am very new to perl .please dont mind if i ask silly questions. I seee below code in one sript if ( exists $ENV{FMTWRP_TMP_DIR} and $ENV{FMTWRP_TMP_DIR} ) { $tdir = $ENV{FMTWRP_TMP_DIR}; } whats does this mean . I am very confused about the if clauses in... (1 Reply)
Discussion started by: ptappeta
1 Replies

8. Shell Programming and Scripting

How to search for a directory with if clause?

Hello All, I want to do a conditional search for a directory, i.e pathname=/abc/def foldername=xyz if ( $pathname/$foldername/aaa ) then .................. fi Here i am searching for aaa directory inside the path and if it exist then it should go inside the loop. Can... (1 Reply)
Discussion started by: Pramod_009
1 Replies

9. Shell Programming and Scripting

If clause query

Hi, i need to add a condition in my IF clause where i need to check if the file exists in a folder and return true out of it. but in my directory i have multiple files with same name but datestamp append on it for e.g. export f1 = filename export f2=filename1 if ] then echo "No... (9 Replies)
Discussion started by: rohit_shinez
9 Replies

10. UNIX for Beginners Questions & Answers

Cshell if clause indentation

I would like to know if indentation is relevant for Cshell scripts. I wrote my code like this: if ((-e file1) && (-e file2)) then cat file1 > file10 cat file2 > file20 endifUsually I write my if clauses like this: if ((-e file1) && (-e file2)) then cat file1 > file10 ... (1 Reply)
Discussion started by: maya3
1 Replies
mhddfs(1)						      General Commands Manual							 mhddfs(1)

NAME
mhddfs - The driver combines a several mount points into the single one. SYNOPSIS
mhddfs /dir1,/dir2[,/path/to/dir3] /path/to/mount [-o options] mhddfs /dir1 dir2,dir3 /mount/point [-o options] ... fusermount -u /path/to/mount fstab record example: mhddfs#/path/to/dir1,/path/to/dir2 /mnt/point fuse defaults 0 0 mhddfs#/dir1,/dir2,/dir3 /mnt fuse logfile=/var/log/mhddfs.log 0 0 OPTIONS
with an -o option1,option2... you can specify some additional options: logfile=/path/to/file.log specify a file that will contain debug information. loglevel=x 0 - debug messages 1 - info messages 2 - standard (default) messages mlimit=size[m|k|g] a free space size threshold If a drive has the free space less than the threshold specifed then another drive will be choosen while creat- ing a new file. If all the drives have free space less than the threshold specified then a drive containing most free space will be choosen. Default value is 4G, minimum value is 100M. This option accepts suffixes: [mM] - megabytes [gG] - gigabytes [kK] - kilobytes For an information about the additional options see output of: mhddfs -h DESCRIPTION
The file system allows to unite a several mount points (or directories) to the single one. So a one big filesystem is simulated and this makes it possible to combine a several hard drives or network file systems. This system is like unionfs but it can choose a drive with the most of free space, and move the data between drives transparently for the applications. While writing files they are written to a 1st hdd until the hdd has the free space (see mlimit option), then they are written on a 2nd hdd, then to 3rd etc. df will show a total statistics of all filesystems like there is a big one hdd. If an overflow arises while writing to the hdd1 then a file content already written will be transferred to a hdd containing enough of free space for a file. The transferring is processed on-the-fly, fully transparent for the application that is writing. So this behaviour simu- lates a big file system. WARNINGS The filesystems are combined must provide a possibility to get their parameters correctly (e.g. size of free space). Otherwise the writing failure can occur (but data consistency will be ok anyway). For example it is a bad idea to combine a several sshfs systems together. Please read FUSE documentation for a further conception. COPYRIGHT
Distributed under GPLv3 Copyright (C) 2008 Dmitry E. Oboukhov <dimka@avanto.org> February 2008 mhddfs(1)
All times are GMT -4. The time now is 12:44 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy