Sponsored Content
Top Forums Shell Programming and Scripting Command output redirection to file issues Post 302999281 by ananan on Friday 16th of June 2017 11:28:52 AM
Old 06-16-2017
Quote:
Originally Posted by ananan
Hi

If I change the file name in the second part it is writing in to that file, but if both files are same only problem occurs.
Finally found the issues. I was initializing the file content in the start of the for loop with > and appending to it in the subsequent if loops >>

So for scenarios where nothing to write in the file for the for loop it simply overwrites the existing file while initializing.

Solved
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Redirection of output to a log file

Apologies for the trivial nature of this question but I cannot seem to get a simple re direct to a log file to work Step 1 touch log.txt at -f batch.sh now >> log.txt I am trying to get the batch.sh contents into the log file Manny Thanks (8 Replies)
Discussion started by: JohnCrump
8 Replies

2. Shell Programming and Scripting

Remote server file output redirection

Hi, I want ssh to the remote server and then execute ls and redirect the output to the file in remote server itself like ssh root@$server `ls /var/log/users.txt > root@$server:/home/users.txt` Can you please let me know the correct syntax for it. Thanks in advance (2 Replies)
Discussion started by: mohitmoudgil
2 Replies

3. UNIX for Dummies Questions & Answers

Output file redirection

Suppose I have a file named a When I write cat a>a The following error message is displayed cat: a: input file is output file and my file a is truncated to zero size. Also the exit status of the last command is 1 Can someone tell me what actually happens when I do so? (1 Reply)
Discussion started by: aagajaba
1 Replies

4. UNIX for Dummies Questions & Answers

Capping output redirection log file length

I am trying to write a script which will output notifications to a logfile, but I would like to cap the logfile to, let's say, 200 lines. Specifically I am using custom firmware, DD-wrt, on my router and I am implementing a script to connect to my work vpn. I have a loop that pings a computer... (2 Replies)
Discussion started by: joemommasfat
2 Replies

5. Shell Programming and Scripting

awk output redirection to file

I have a system stat command running which generates data after 5 sec or so. I pass this data to awk and do some calculation to present the data differently. Once done now I want to pass this data to file as and when generated but doesn't work..unless the first command completes successfully.... (6 Replies)
Discussion started by: learnscript
6 Replies

6. Shell Programming and Scripting

Help with tar --append command output redirection

I am using tar command to append daily database backups on tape. "tar --append " command help me to do this. But tar --append command does not produce any output on stdout if it succeed. I want the output for that appended command to a log file. This log file should contain only the name of the... (0 Replies)
Discussion started by: pganguly46
0 Replies

7. Shell Programming and Scripting

output redirection to existing file question

So I have a existing file that I used the uniq command on and I need to save the output to the same file without changing the file name. I have tried $ uniq filename > filename then when I cat the file it then becomes blank like there is nothing inside. any help would be much appreciated... (0 Replies)
Discussion started by: drew211
0 Replies

8. UNIX and Linux Applications

output redirection command

Dear All, ./waf --run scratch/myfirst > log.out 2>&1 The above is a command line to redirect the output to a file called log.out. what is the 2>&1 part for ? Thank you (2 Replies)
Discussion started by: knowledgeSeeker
2 Replies

9. Shell Programming and Scripting

Command output redirection in script not working

I need to count the number of lines in a .txt file and put it in a variable. I am using the following code #!/bin/bash count = $(wc -l "some file.txt" | awk '{print$1}') echo $count It is giving the following error. line3: count: command not foundWhat am I doing wrong here? :confused: (7 Replies)
Discussion started by: haritha.gorijav
7 Replies

10. Shell Programming and Scripting

Output redirection of c binary file to a file in shell script is failing

I am struck up with a problem and that is with output redirection. I used all the ways for the redirection of the output of c binary to a file, still it is failing. Here are the different ways which I have used: ./a.out | tee -a /root/tmp.txt 2>&1 ./a.out | tee -a /root/tmp.txt 1>&1 ./a.out |... (2 Replies)
Discussion started by: Maya29988
2 Replies
voice_set_playmode(3alleg4)					  Allegro manual				       voice_set_playmode(3alleg4)

NAME
voice_set_playmode - Adjusts the loop status of the specified voice. Allegro game programming library. SYNOPSIS
#include <allegro.h> void voice_set_playmode(int voice, int playmode); DESCRIPTION
Adjusts the loop status of the specified voice. This can be done while the voice is playing, so you can start a sample in looped mode (hav- ing set the loop start and end positions to the appropriate values), and then clear the loop flag when you want to end the sound, which will cause it to continue past the loop end, play the subsequent part of the sample, and finish in the normal way. The mode parameter is a bitfield containing the following values: PLAYMODE_PLAY Plays the sample a single time. This is the default if you don't set the loop flag. PLAYMODE_LOOP Loops repeatedly through the sample, jumping back to the loop start position upon reaching the loop end. PLAYMODE_FORWARD Plays the sample from beginning to end. This is the default if you don't set the backward flag. PLAYMODE_BACKWARD Reverses the direction of the sample. If you combine this with the loop flag, the sample jumps to the loop end position upon reaching the loop start (ie. you do not need to reverse the loop start and end values when you play the sample in reverse). PLAYMODE_BIDIR When used in combination with the loop flag, causes the sample to change direction each time it reaches one of the loop points, so it alternates between playing forwards and in reverse. SEE ALSO
Allegro version 4.4.2 voice_set_playmode(3alleg4)
All times are GMT -4. The time now is 11:11 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy