Sponsored Content
Top Forums Shell Programming and Scripting 1 Command - 2 Behaviours and a wrong false message Post 302931068 by Don Cragun on Friday 9th of January 2015 11:20:28 PM
Old 01-10-2015
Try changing:
Code:
check=$(echo "$1" | tr -d [:digit:])

to:
Code:
check=$(echo "$1" | tr -d '[:digit:]')

Double quotes should also work as well as single quotes in this example. (I generally prefer single quotes when quoting constant strings.)

PS
I should have said why the quotes are needed...
The unquoted argument [:digit:] is a pathname bracket expression that changes to a list of files with the single character names :, d, i, g, and t if any such files are present in the directory where you run this command. If you run it in a directory where there are no files matching this pattern, the unchanged pattern is passed to tr as an operand. So, the reason it works sometimes and fails sometimes is the contents of the directory where it is run; not the script used to invoke it.

Last edited by Don Cragun; 01-10-2015 at 12:41 AM.. Reason: Add PS.
This User Gave Thanks to Don Cragun For This Post:
 

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Whats wrong with the mv command

I am sorry guys I have figured out the error myself. (0 Replies)
Discussion started by: dsravan
0 Replies

2. Shell Programming and Scripting

Is anything wrong with this command

Hi All, can anyone tell me what is wrong with this command. tail -f /opt/olr-logs/PaymentGateway.log | grep "DEBUG - Start! AkhtarPaymentGateway - generateChecksum" | awk '{print $13}' | sed 's/,//g'>> abc But I found nothing in the file abc Please do help me.or Provide me some... (8 Replies)
Discussion started by: akhtar.bhat
8 Replies

3. UNIX for Advanced & Expert Users

what is wrong with this find command

i am trying to find the files which are more than 100MB and it was created 10 days ago. find /lola/loaded -size +102400 -mtime -10 -print | xargs ls -ltr -rw-rw-r-- 1 lola_adm gdrmp 82054170 Jun 23 06:17 /lola/loaded/ILMEMBER20090622.txt -rw-rw-r-- 1 lola_adm gdrmp 652080494 Jun 24... (3 Replies)
Discussion started by: sudhiroracle
3 Replies

4. UNIX for Dummies Questions & Answers

what is wrong with this command?

Hello, I try to using the below command to find out all the datafiles under "sja" direcotory. $ xargs -i find {} -type f -ls < sja /bin/ksh: sja: cannot open so can you tell me what is wrong? Thanks Jerry (3 Replies)
Discussion started by: GreatJerry
3 Replies

5. Shell Programming and Scripting

What's wrong with the following command?

Hi all, I'm trying to run the following command to get all files in one directory to another with the files' timestamps preserved, cp -p /logs/dvgbiau/batch/* /logs/dvgbiau/tmp_batch Note that ./batch and ./tmp_batch are two sub-directories under /logs/dvgbiau. The error was,... (1 Reply)
Discussion started by: isaacniu
1 Replies

6. Solaris

After command setenv auto-boot false machine's console not displaying

hi Alll, I want to install solaris 10 on exixting solaris mahcine. I tried for OK boot cdrom-install but it gave me fatal error - disk not bootable , boot command disable so i tried with ok setenv auto-boot? false Ok reset-all after this server rebooted automatically and... (2 Replies)
Discussion started by: sunray
2 Replies

7. Solaris

User account get locked due to strange behaviours

I am facing strange problem where after three failed login attempt user password must be locked. Actually what is happening, when I take the putty session of the server & enter user name on the prompt at the login prompt & then press enter to enter the password at this time when I checked the... (10 Replies)
Discussion started by: sb200
10 Replies

8. Shell Programming and Scripting

What is wrong with my awk command?

The below code usually works when the value for the COLUMN variable is numerical. but im in a situation where the number of fields in a file is not definitive. it changes. but what is static is that the value i want to retrieve from the log is 3 fields from the last field. which is what i... (9 Replies)
Discussion started by: SkySmart
9 Replies
IRSEND(1)							   User Commands							 IRSEND(1)

NAME
irsend - basic LIRC program to send infra-red commands SYNOPSIS
irsend [options] DIRECTIVE REMOTE CODE [CODE...] DESCRIPTION
Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such as TV boxes, HiFi sets, etc. DIRECTIVE can be: SEND_ONCE - send CODE [CODE ...] once SEND_START - start repeating CODE SEND_STOP - stop repeating CODE LIST - list configured remote items SET_TRANSMITTERS - set transmitters NUM [NUM ...] SIMULATE - simulate IR event REMOTE is the name of a remote, as described in the lircd configuration file. CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file. NUM is the transmitter number of the hardware device. For the LIST DIRECTIVE, REMOTE and/or CODE can be empty: LIST "" "" - list all configured remote names LIST REMOTE "" - list all codes of REMOTE LIST REMOTE CODE - list only CODE of REMOTE The SIMULATE command only works if it has been explicitly enabled in lircd. -h --help display usage summary -v --version display version -d --device use given lircd socket [/var/run/lirc/lircd] -a --address=host[:port] connect to lircd at this address -# --count=n send command n times EXAMPLES
irsend LIST DenonTuner "" irsend SEND_ONCE DenonTuner PROG-SCAN irsend SEND_ONCE OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3 irsend SEND_STOP OnkyoAmpli VOL-DOWN irsend SET_TRANSMITTERS 1 irsend SET_TRANSMITTERS 1 3 4 irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S" FILES
/etc/lirc/lircd.conf Default lircd configuration file. It should contain all the remotes, their infra-red codes and the corresponding timing and wave- form details. DIAGNOSTICS
If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics: "irsend: could not connect to socket" "irsend: Connection refused" (or "Permission denied"). SEE ALSO
The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory. lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org. irsend 0.9.0-pre1 October 2010 IRSEND(1)
All times are GMT -4. The time now is 08:59 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy