one way is to use tr to remove unwanted character types. -dc removes everything except those char types you specify. [:alnum;] is alphanumeric, so if you check the length of the string it should be unchanged if it contains only the char types you want.
how to match an alphanumeric string like the following.
i have to do like the following.
if the input line is
the data is {clock_91b}
i have to replace that with
the string was ("clock_91b")
i tried like
$line =~ s/the data is\s+\{(+)\}/the string was \(\"$1\"\)/
which... (4 Replies)
Hi :)
I am writing a ksh
I have a string of general format
A12B3456CD78
the string is of variable length
the string always ends with numbers (here it is 78.. it can be any number of digits may be 789 or just 7)
before these ending numbers are alphabets (here it is CD can even be... (3 Replies)
I'm trying to do a simple if statement that tests if a filename exists with a user specified string.
So say I have these files:
Assigned_1day_after_due_chuong
Assigned_1day_after_due_gallen
Assigned_1day_after_due_heidenre
and i'm running a script and want to know if a... (6 Replies)
This is the code:
while test 1 -eq 1
do
read a
$a
if test $a = stop
then
break
fi
done
I read a command on every loop an execute it.
I check if the string equals the word stop to end the loop,but it say that I gave too many arguments to test.
For example echo hello.
Now the... (1 Reply)
Hi there,
I want to compare 2nd column which are alphanumeric values from each of the 2 files i.e.,lspv_pre.out and lspv_post.out , if found echo some message.
lspv_pre.out
hdisk0 00c39eaa451144dd rootvg active
hdisk1 00c39eaa45223322 ... (3 Replies)
Hi,
I would like to be able to parse out a substring matching a basic pattern, which is a character followed by 3 or 4 digits (for example S1234 out of a larger string). The main string would just be a filename, like Thisis__the FileName_S1234_ToParse.txt. The filename isn't fixed, but the... (2 Replies)
Hi everyone,
I want help to insert space between digits and letters in a alphanumeric string.
INPUT
TRY234TER
PHY1TYR
EXPECTED OUTPUT
TRY 234 TER
PHY 1 TYR
The lines always begin with the letters and the alphabets will be a three letter combination before and after the number. The... (2 Replies)
Hi,
I will be having file names like below,
1420SP1.01804
1420SP1.01805D
1420SP1.01805
1420SP1.01806D
1420SP1.01806
1420SP1.01901D
1420SP1.01901
1420SP1.01902D
1420SP1.01902
1420SP1.01903D
1420SP1.01903
1420SP1.01904
1420SP1.01905
From this, I need to list file names which is... (3 Replies)
Hi,
I want a script of a code that will allow me to generate all possible combinations of alphanumberica characters of length 12 such that each string will contain numbers and either small or capital letters.
For example a string may look like this: 123AB45cd678. (11 Replies)
Discussion started by: faizlo
11 Replies
LEARN ABOUT LINUX
suspend
suspend(1) User Commands suspend(1)NAME
suspend - shell built-in function to halt the current shell
SYNOPSIS
sh
suspend
csh
suspend
ksh
suspend
DESCRIPTION
sh
Stops the execution of the current shell (but not if it is the login shell).
csh
Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.
ksh
Stops the execution of the current shell (but not if it is the login shell).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)SunOS 5.10 15 Apr 1994 suspend(1)