Sponsored Content
Top Forums Shell Programming and Scripting How to execute a command inside a while loop? Post 302881935 by Little on Friday 3rd of January 2014 04:07:01 AM
Old 01-03-2014
hey sorry, i wrote the description but don't lnow how it got erased.

i have a set of commands inside a text file. 1 command per line.
command.txt
Code:
echo "start"
ls -l
pwd

i want to execute these commands one by one and after finishing the last command, again it should start from the 1st command.

infinity.sh
Code:
count=0
while :
do
        while read exe_command
        do
                (( count++ ));
                echo "$exe_command"
                result_$count=`$exe_command`
        done < command.txt
        echo ""
done

the commands are not getting executed.

output:
e
Code:
cho "start"
infinite.sh: line 8: result_178="start": command not found
ls -l
infinite.sh: line 8: result_179=total: command not found
pwd
infinite.sh: line 8: result_180=/home: No such file or directory

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

read command (input) inside the while loop

Hi, 'read' command is not working inside the while loop, How can I solve this? Rgds, Sharif. (2 Replies)
Discussion started by: sharif
2 Replies

2. Shell Programming and Scripting

Execute command inside while problem

Hi! How can I execute a linux command inside the while cicle?? like: This doesn't work. Should I replace the by '' or "" (3 Replies)
Discussion started by: ruben.rodrigues
3 Replies

3. Shell Programming and Scripting

C Shell - Command Inside a Loop

I have a command nested in some while loops to parse some data that looks something like this. while ($condition) while ($condition) ... gzcat /dir/$fileName.gz | grep $searchString > out_file end end On the first loop, the command is executed properly (and takes maybe 10... (3 Replies)
Discussion started by: hobbers
3 Replies

4. UNIX for Dummies Questions & Answers

For Loop to execute a command on a series of files

Hello, I have a set of input data that I split into batches using the following command: split -l 4000000 MyInput.in Split_a Once I get the split files, I run a certain command on the split files that spews an output. So far I have been doing it without a for loop. How can I translate the... (2 Replies)
Discussion started by: Gussifinknottle
2 Replies

5. Shell Programming and Scripting

loop to replace txt and add command inside of colon (:)

in one of my script..I have some thing like john:christina : one:: and i want to make it like john:chritina:two:(date command):jackey: basically change 'one' to 'two' and run date :command and add other name: (30 Replies)
Discussion started by: Learnerabc
30 Replies

6. Shell Programming and Scripting

how to use sqlplus command inside for loop

I tried this: for region in 'raj' 'kt' 'kol' 'krl' 'chn' 'dl' 'hr' 'bih' 'ap' do sqlplus -s huw$region/`echo $region`huw#321@huw$region<<! set serveroutput on begin select count(*) from tcd_preferred_cust_201109 end; / exit; done but the error shows like: Syntax error at line 4 :... (1 Reply)
Discussion started by: deepakprasad29@
1 Replies

7. Shell Programming and Scripting

Execute command with loop

I have a below command ALTER TABLE `abc` ADD PARTITION ( PARTITION 20130613 VALUES less than (DAY('13'))); Below is requirement It runs in Loop as DAY start with 13 and end with 100 along with this of counter "20130613" also increases per command as the next command should be ... (8 Replies)
Discussion started by: kaushik02018
8 Replies

8. Shell Programming and Scripting

If else condition inside for loop of awk command in UNIX shell scripting

Hi , Please excuse me for opening a new thread i am unable to find out the syntax error in my if else condition inside for loop in awk command , my actual aim is to print formatted html td tag when if condition (True) having string as "failed", could anyone please advise what is the right... (2 Replies)
Discussion started by: karthikram
2 Replies

9. Shell Programming and Scripting

While loop breaking when using "ssh" command inside

Hi , I am trying to read a list of hosts from a config file and trying to get file list from that host. For this I have used one while loop. cat "$ARCHIVE_CFG_FILE" | sed '/^$/d' | sed '/^#/d' | while read ARCHIVE_CFG do SOURCE_SERVER_NAME=`echo "$ARCHIVE_CFG" | awk -F '|' '{ print... (2 Replies)
Discussion started by: Anupam_Halder
2 Replies

10. Shell Programming and Scripting

CUT command not giving correct result inside loop

Hi, i have a source file and have 3 columns and separated by "|" .i want to split this 3 columns in different variable.When i am executing this values indivisually giving correct result but when the same execute inside a for loop,it's giving issues. Src file(jjj.txt) -------... (8 Replies)
Discussion started by: raju2016
8 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 06:25 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy