Sponsored Content
Full Discussion: Problem determining file
Top Forums Shell Programming and Scripting Problem determining file Post 302242194 by Ikon on Wednesday 1st of October 2008 10:56:15 AM
Old 10-01-2008
Code:
if [ -f /path/to/file ]		# be sure the file exists
then
   echo "It is a file and exists!"
fi

Code:
if [ -d /path/to/file ]		# be sure the file exists
then
   echo "It is a directory and exists!"
fi

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Determining file length

How can I determine what UNIX thinks the record size of any given file is?? (1 Reply)
Discussion started by: jbrubaker
1 Replies

2. UNIX for Dummies Questions & Answers

Determining type of file

Hello, I'm attempting to modify a script so it can be executed via a batch scheduler. Part of the script calls a program called direct (which I believe may have something to do with Connect Direct). I have tried cat and vi on the file; cat returns absolute gibberish, vi states the file is... (2 Replies)
Discussion started by: JWilliams
2 Replies

3. Shell Programming and Scripting

Determining position in a tab delimited file

hi, I want to determine the position of specific values over a cutoff. So I have a string of values that are mainly negative in number and I want to print the rare few that are positive. Specifically I want to know the position of the value along the string. The position is based from right to... (11 Replies)
Discussion started by: phil_heath
11 Replies

4. Programming

Determining file access perms for current process

Stupid question, but is there an ANSI C stdlib function that will do this for me? I want to pass the function a path and determine if the current process can read/write/execute on the path. I suppose I can whip something up using fstat and then determining the current process's user/group IDs and... (6 Replies)
Discussion started by: DreamWarrior
6 Replies

5. Programming

determining the IP of a function

Is there a way to determine the "Instruction Pointer" of a function in c++, and if so can someone tell me? (5 Replies)
Discussion started by: neur0n
5 Replies

6. Programming

Problem in determining runlevel through a C program

Hi, I am trying with the following code to retrieve the runlevel of my Linux Ubuntu 8.04 system by reading the "utmp" database. But I am getting blank output. May I know what correction I should do inorder to make this program to work? #include <stdio.h> #include <stdlib.h> #include... (1 Reply)
Discussion started by: royalibrahim
1 Replies

7. UNIX for Advanced & Expert Users

Determining typing latency

Hi all, When I use an editor (vi) that is spawned in a remote server, visually I could see the latency between typing a character/word and being displayed on the terminal. I could see this visually but how do I get a metric on this or how to quantify this? As expected, when I type in a editor... (6 Replies)
Discussion started by: matrixmadhan
6 Replies

8. UNIX for Dummies Questions & Answers

Determining file size for a list of files with paths

Hello, I have a flat file with a list of files with the path to the file and I am attempting to calculate the filesize for each one; however xargs isn't playing nicely and I am sure there is probably a better way of doing this. What I envisioned is this: cat filename|xargs -i ls -l {} |awk... (4 Replies)
Discussion started by: joe8mofo
4 Replies

9. Shell Programming and Scripting

Efficient method of determining if a string is in a file.

Hi, I was hoping someone could suggest an alternative to code I currently have as mine takes up far too much processor time and it to slow. The situation: I have a programme that runs on some files just before they are zipped up and archived, the program appends a one line summary of the... (4 Replies)
Discussion started by: RECrerar
4 Replies

10. Linux

Determining Values for NIce and Priority items in limits.conf file

I've been looking online trying to find the correct value nice and priority can take in the limits.conf file. ON the man page it says; Does this mean priority can be any negative number and any positive? Then Does this mean any number between -20 and 19 also what does the definition of nice... (13 Replies)
Discussion started by: matthewfs
13 Replies
echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.11 3 Aug 1994 echo(1B)
All times are GMT -4. The time now is 09:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy