This might be a little more than you want, but have you considered using set -e? The standards describe the behavior of the shell when the set -e option is in effect as:
Hi
i have compiled and installed bash 3.2 on my hp-ux parisc
its in path /usr/local/pkg/bash/bin/bash .....When im search for this bash (through whereis bash) im not findind but other which i hve done in same procedure( gettext,m4) ..Im able to find through whereis search option
can any1... (3 Replies)
Hey all, I'm a fairly new shell scripter (been writing some very basic stuff for a couple of years once in a blue moon).
I have the need to start 2 or 3 processes from within a bash script when it's run then have the script kind of hang out and wait for the user to ctrl+c and when that happens... (3 Replies)
Hi
How to prevent grep command from throwing a system trap(or returning error status) if No match is found in the specified file(s) ?
Consider this simple shell script:
#!/usr/bin/ksh
trap 'STATUS=$?;set +x;echo;echo error $STATUS at line nb $LINENO executing :\
`sed -n... (2 Replies)
i am having a weird error on mac os x running some shell scripts. i am a complete newbie at this and this question concerns 2 scripts. one of which a friend of mine wrote (videochecker.sh) a couple weeks ago and it's been running fine on another machine.
then last week i wrote capture.sh and it... (2 Replies)
I am trying to create a shell that asks the user to enter their name, and compare it to my own by saying we have the same name or saying my name and that they have a nice name too. Here is my script...
#!/bin/bash-x
echo "Enter your name".
read name
if
then
echo "My name is Adam too"... (1 Reply)
Hi I need a bash script that can search through a text file and when it finds 'FSS1206' I need to put a Letter F 100 spaces after the second instance of FSS1206
The format is the same throughout the file I need to repeat this on every time it finds the second 'FSS1206' in the file
I have... (0 Replies)
Hello All,
Bash Version: 4.1.10(1)
I'm trying to "verify" some user input. The User input will contain the "Absolute Path" a "Command" and any "Options"
of that Command.
For Example, say the user's input is:
user_input="/usr//local/myExample/check_process -p 'java' -w 10 -c 20"
I... (6 Replies)
I'm facing issues in executing the bash script of mine. This script will pick the latest file received and connects SFTP server and files is placed on this remote server.
Error message
Enter password:
"File movement"
sftp> cd Test
sftp> put Test_File_201309.txt
File "Test_File_201309.txt"... (6 Replies)
In the bash below I am searching the filevirus-scan.log for the Infected files: 0 line (in bold) and each line for OK.
If both of these are true then the function execute is automatically called and processing starts. If both these conditions are not meet then the line in the
file is sent to the... (2 Replies)
Hello,
I have a question regarding while loop and existence of files.
I am running under ubuntu 18.04 bionic, have around fifty video files inside the directory.
script:
for file in *.mp4
do
/root/bin/ffmpeg -i $file \
-i $(basename "${file/.mp4}").bs.srt \
-i $(basename... (12 Replies)
Discussion started by: baris35
12 Replies
LEARN ABOUT SUNOS
return
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)