Directing only part of a script's output to piped application
Is there a way to keep the output of a script displayed on the terminal when it's run by itself, but suspend part of that output and only have a specific part delivered when it's piped to another script or program? I'm thinking something like the following pseudocode:
How do I direct the output of an at command
at now < backupprogram
so that I see something happening. It says the job has been executed but I am not getting the tar file that my backup program on the computer anywhere at all
Please help me - I really am a struggling begginer. (1 Reply)
Hi,
I just wrote a program in C to split a comma seperated string in to group of strings using strtok() function. The code is:
int main()
{
char *temp;//not used here but basically we extract one string after another using strtok() and assign to a string pointer defined like this.
... (3 Replies)
When I do
time tar cvf /dev/st0 /mnt/junk >> /root/benchlog, I want it to put the output of the time command into the benchlog file, but it put /mnt/junk. How do I get it to put the output of the tar command? (1 Reply)
I have a script in which some outputs are directed to one file
echo "Load Started" >>${LOGFILE1}
If I have another file LOGFILE2 and i want to redirect the output of the above echo command to LOGFILE2 as well with the same command line... how can i do that?
Thanks (2 Replies)
Dear All
I have a simple bash script that creates a folder ( I called it TEMP) in the current directory.
The question is: how do I direct the output of my awk script into folder TEMP?
Below is my attempt:
#!/bin/bash
mkdir TEMP
echo Enter input file:
read infile
awk... (4 Replies)
Currently, i am trying to create a simple robust script that is intended to move the contents of a given source directory to a target directory. Optionally, the script should allow to either move the whole source dir content, or dotfiles only, or visible files only. I am aware the target directory... (0 Replies)
hi
i have a script named mount.sh under the location /data/scripts/ in my aix box
i want this script this to be run everyday morning at 04:45 AM and the output of the script should be piped to a file
how to do this ? (3 Replies)
to run most other scripts through a pipe, something similar to the following is usually enough:
cat script.sh | sh
cat perl.pl | perl -- "<arguments"
However, for javascript command line scripts, i cant seem to get this to work. Any ideas?
cat hull.js
#!/usr/bin/js
... (3 Replies)
Discussion started by: SkySmart
3 Replies
LEARN ABOUT V7
script
SCRIPT(1) User Commands SCRIPT(1)NAME
script - make typescript of terminal session
SYNOPSIS
script [options] [file]
DESCRIPTION
script makes a typescript of everything displayed on your terminal. It is useful for students who need a hardcopy record of an interactive
session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves the dialogue in this file. If no filename is given, the dialogue is saved in the file type-
script.
OPTIONS -a, --append
Append the output to file or to typescript, retaining the prior contents.
-c, --command command
Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves
differently when its stdout is not a tty.
-e, --return
Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n.
-f, --flush
Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can
supervise real-time what is being done using `cat foo'.
--force
Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic
link.
-q, --quiet
Be quiet (do not write start and done messages to standard output).
-t[file], --timing[=file]
Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field
indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time.
This information can be used to replay typescripts with realistic typing and output delays.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
NOTES
The script ends when the forked shell exits (a control-D for the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not
set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. script works best with commands that do not manipulate
the screen, the results are meant to emulate a hardcopy terminal.
It is not recommended to run script in non-interactive shells. The inner shell of script is always interactive, and this could lead to
unexpected results. If you use script in the shell initialization file, you have to avoid entering an infinite loop. You can use for
example the .profile file, which is read by login shells only:
if test -t 0 ; then
script
exit
fi
You should also avoid use of script in command pipes, as script can read more input than you would expect.
ENVIRONMENT
The following environment variable is utilized by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed.
(Most shells set this variable automatically).
SEE ALSO csh(1) (for the history mechanism), scriptreplay(1)HISTORY
The script command appeared in 3.0BSD.
BUGS
script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
script is primarily designed for interactive terminal sessions. When stdin is not a terminal (for example: echo foo | script), then the
session can hang, because the interactive shell within the script session misses EOF and script has no clue when to close the session. See
the NOTES section for more information.
AVAILABILITY
The script command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
/util-linux/>.
util-linux June 2014 SCRIPT(1)