&2>/dev/null is still odd, the & is too many. The & before a descriptor number is needed on the RHS only, to distinguish it from a file name.
And, the only errors that a [[ ]] can produce are "syntax error", "not an integer", "division by zero". You want to see them!
If you want to supress an error from an embedded sub shell expression than redirect it within the sub shell.
In general, only suppress error messages when it makes sense - they help you!
And yes, I meant the
that should become
Last edited by MadeInGermany; 04-19-2020 at 09:24 AM..
Reason: correction: no surrounding *
This User Gave Thanks to MadeInGermany For This Post:
We have requirments to not allow a userid login abilities but allow users to 'su' to it. In solaris I normally set the shell in /etc/passwd to bin/false. THis does not work on Linux, any suggestions would help. (1 Reply)
i want to delete every newline and every line which starts with "RECORD......." in a file.
FILE:
Record 61391 in base BROCKHAUS (Timestamp: 2008-04-09 11:38:38)
UNTERTITEL :
Gräfin (seit 1707 Reichsgräfin) von, * Schwerin 4. 2. 1686, + Berlin
21. 10. 1744; wurde
Record 61392 in base BROCKHAUS... (4 Replies)
Hi,
I'm new to UNIX and am trying to learn shell scripting in order to work on an interface that I inherited when a co-worker left. I need to be able to check to see whether a file exists to determine whether the FTP has taken place, but in testing, the if statement always evaluates as false,... (3 Replies)
Hi All,
I am using the below Script to enter a line in the File:
#!/bin/ksh
# To delete the last line if it contains the pattern Redirect permanent / Virgin Atlantic Airways - Popup
echo "Enter the URL that should point to the particular microsite"
read url
# To delete the last line if it... (0 Replies)
Why this happens?
How to solve this?
$netstat -na |grep 9325
tcp 0 0 127.0.0.1:9325 127.0.0.1:9325 ESTABLISHED
When a client socket repeatedly tries to connect to an inactive(no server socket is listening on this port) local port,connect succeeds.
... (1 Reply)
Checking configuration access files for an AIX server, left me wondering about this :confused::
If a user is added to system group, it gets gid=0 with some security risks because it gets some root kind of file access level.
Is this insecure condition kept if the user has admin variable... (0 Replies)
I have read the below from the book bash cookbook.Tail +1 filenames is similar to cat filename
I have tried the same in Ubuntu 11.10 with bash. 4.0 .
I have received error for the Same.
May I know in which system that will work fine ?
Thanks (1 Reply)
Hi
I have written a script to send email alerts when load of my linux server reaches max point
I keep getting false emails thought the load is normal , looks like same email is generated again and again - called from cron tab
checked if the tempfile is present , no it is not , cleaned... (22 Replies)
Discussion started by: anil529
22 Replies
LEARN ABOUT DEBIAN
viewperl
VIEWPERL(1) User Commands VIEWPERL(1)NAME
viewperl - quickly view syntax highlighted Perl code
SYNOPSIS
viewperl [OPTION]... FILE...
DESCRIPTION
View a Perl source code file, syntax highlighted.
-c, --code=CODE
view CODE, syntax highlighted
-l, --lines
display line numbers
-L, --no-lines
supress display of line numbers (default)
-m, --module=FILE
consider FILE the name of a module, not a file name
-n, --name
display the name of each file (default)
-N, --no-name
supress display of file names (implied by --no-reset)
-p, --pod
display inline POD documentation (default)
-P, --no-pod
hide POD documentation (line numbers still increment)
-r, --reset
reset formatting and line numbers each file (default)
-R, --no-reset
supress resetting of formatting and line numbers
-s, --shift=WIDTH
set tab width (default is 4)
-t, --tabs
translate tabs into spaces (default)
-T, --no-tabs
supress translating of tabs into spaces
--help display this help and exit
Note that module names should be given as they would appear after a Perl `use' or `require' statement. `Getopt::Long', for example.
Each string given using -c is considered a different file, so line number and formatting resets will apply.
View a Perl source code file, syntax highlighted.
-c, --code=CODE
view CODE, syntax highlighted
-l, --lines
display line numbers
-L, --no-lines
supress display of line numbers (default)
-m, --module=FILE
consider FILE the name of a module, not a file name
-n, --name
display the name of each file (default)
-N, --no-name
supress display of file names (implied by --no-reset)
-p, --pod
display inline POD documentation (default)
-P, --no-pod
hide POD documentation (line numbers still increment)
-r, --reset
reset formatting and line numbers each file (default)
-R, --no-reset
supress resetting of formatting and line numbers
-s, --shift=WIDTH
set tab width (default is 4)
-t, --tabs
translate tabs into spaces (default)
-T, --no-tabs
supress translating of tabs into spaces
--help display this help and exit
Note that module names should be given as they would appear after a Perl `use' or `require' statement. `Getopt::Long', for example.
Each string given using -c is considered a different file, so line number and formatting resets will apply.
viewperl August 2007 VIEWPERL(1)