Sponsored Content
Top Forums Shell Programming and Scripting Problem with for loop in bash Post 302370056 by detatchedd on Tuesday 10th of November 2009 09:05:01 AM
Old 11-10-2009
Problem with for loop in bash

I'm trying to do a script where I want to see if all users home directories are only writable by owner. However, in my script I do not know how to implement the for loop so that all directories are checked. In mine, I am only checking the permissions for the first directory found. I do know that a for loop is needed. Appreciate any advice given Smilie

Quote:
#!/usr/bin/bash
clear
DIR=`awk -F: '{ print $6 }' /etc/passwd | uniq -u`
VAR=`ls -ld $DIR | awk '{ print $1 }'`

echo $DIR
echo $VAR

G=${VAR:5:1}
O=${VAR:8:1}

if [ "$G" == "-" ] && [ "$O"=="-" ] #success
then
echo "Directory only writable by owner"
fi
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Simple bash for loop problem

I'm just trying to make a script that runs in command line to echo each line in a text file. Everything i found on google is telling me to do it like this but when I run it it just echos removethese.txt and thats it. Anyone know what im doing wrong? for i in removethese.txt; do echo $i; done ... (4 Replies)
Discussion started by: kingdbag
4 Replies

2. Shell Programming and Scripting

Bash while loop problem

Hi, I'm having a problem with the while loop in bash. I try the following script: #!/bin/bash while true do echo "test" done When I try this, it gives me this error: while: Too few arguments. What am I doing wrong? Thanks (5 Replies)
Discussion started by: Kweekwom
5 Replies

3. Shell Programming and Scripting

bash and ksh: variable lost in loop in bash?

Hi, I use AIX (ksh) and Linux (bash) servers. I'm trying to do scripts to will run in both ksh and bash, and most of the time it works. But this time I don't get it in bash (I'm more familar in ksh). The goal of my script if to read a "config file" (like "ini" file), and make various report.... (2 Replies)
Discussion started by: estienne
2 Replies

4. Shell Programming and Scripting

problem with while loop in BASH shell

I have file named script1 as follows: #!/bin/bash count="0" echo "hello" echo "$count" while do echo "$count" count=`expr $count + 1` done ----------- when I run it, I get ./script1: line 9: syntax error near unexpected token `done' ./script1: line 9: `done' I... (6 Replies)
Discussion started by: npatwardhan
6 Replies

5. Shell Programming and Scripting

bash & Ksh loop problem

hi i was trying to optimize one script and i came across this problem .. i am putting some pseudo code here $ >cat a.sh ls | while read I do i=$(($i + 1)) done echo "total no of files : " $ >ksh a.sh total no of files : $ >bash a.sh total no of files : why is... (1 Reply)
Discussion started by: zedex
1 Replies

6. Shell Programming and Scripting

Using variables created sequentially in a loop while still inside of the loop [bash]

I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends. As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Discussion started by: DeCoTwc
2 Replies

7. Shell Programming and Scripting

BASH loop inside a loop question

Hi all Sorry for the basic question, but i am writing a shell script to get around a slightly flaky binary that ships with one of our servers. This particular utility randomly generates the correct information and could work first time or may work on the 12th or 100th attempt etc !.... (4 Replies)
Discussion started by: rethink
4 Replies

8. Shell Programming and Scripting

problem access array outside of loop in bash

Below is a test script I was trying to use so that I could understand why the logic was not working in a larger script. While accessing and printing array data inside the while loop, everything is fine. Outside the loop, i guess everything is null?? The for loop that is meant to cycle... (4 Replies)
Discussion started by: adlmostwanted
4 Replies

9. Shell Programming and Scripting

If loop in bash

Hello, I have a script that runs a series of commands. Halfway through the script, I want it to check whether everything is going alright: if it is, to proceed with the script, if it isn't to repeat the last step until it gets it right. My code so far looks like this, simplified a bit: ... (3 Replies)
Discussion started by: Leo_Boon
3 Replies

10. UNIX for Dummies Questions & Answers

Problem with multiple grep in bash loop

Hello, I am trying to create a matrix of 0's and 1's depending on whether a gene and sample name are found in the same line in a file called results.txt. An example of the results.txt file is (tab-delimited): Sample1 Gene1 ## Gene2 ## Sample2 Gene2 ## Gene 4 ## Sample3 Gene3 ... (2 Replies)
Discussion started by: InfoSeeker2
2 Replies
UPSLOG(8)						      Network UPS Tools (NUT)							 UPSLOG(8)

NAME
upslog - UPS status logger SYNOPSIS
upslog -h upslog ups logfile interval [format] DESCRIPTION
upslog is a daemon that will poll a UPS at periodic intervals, fetch the variables that interest you, format them, and write them to a file. The default format string includes variables that are supported by many common UPS models. See the description below to make your own. OPTIONS
-h Display the help message. ups Monitor this UPS. The format for this option is [upsname@]hostname[:port]. logfile Store the results in this file. You can use - for stdout, but upslog will remain in the foreground. interval Wait this many seconds between polls. Remember that a poll is not instantaneous, so it will slip back as the program runs. If you require tighter timing, you should write your own logger using the upsclient library. format The string to log, including variables from the UPS. Valid escapes within this string are: %% - insert a single % %TIME format% - insert the time with strftime formatting %ETIME% - insert the number of seconds, ala time_t. This is now a 10 digit number. %HOST% - insert the local hostname %UPSHOST% - insert the host of the UPS being monitored %PID% - insert the pid of upslog %VAR varname% - insert the value of variable varname The default format string is: %TIME @Y@m@d @H@M@S% %VAR battpct% %VAR utility% %VAR loadpct% [%VAR status%] %VAR upstemp% %VAR acfreq% SERVICE DELAYS
The interval value is merely the number given to sleep() after running through the format string. Therefore, a query will actually take slightly longer than the interval depending on the speed of your system. LOG ROTATION
upslog writes its pid to upslog.pid, and will reopen the log file if you send it a SIGHUP. This allows it to keep running when the log is rotated by an external program. SEE ALSO
Server: upsd(8) Clients: upsc(8), upscmd(8), upsrw(8), upsmon(8) Internet resources: The NUT (Network UPS Tools) home page: http://www.exploits.org/nut/ NUT mailing list archives and information: http://lists.exploits.org/ Wed Oct 16 2002 UPSLOG(8)
All times are GMT -4. The time now is 05:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy