Hi there
I need to grep for a detail from a file. The pattern to search for involves escape sequences in it. This causes for the problem.
grep "P\_SOME\_STRING\_SEARCH" filename
Note, I have line like below in the file and expect it to grep.
select *
from my_system_param
... (3 Replies)
When I open a file in vi, I see the following characters:
\302\240
Can someone explain what these characters mean. Is it ASCII format? I need to trim those characters from a file.
I am doing the following:
tr -d '\302\240'
---------- Post updated at 08:35 PM ---------- Previous... (1 Reply)
I need to pass congruent or comma character as parameter. i have tried congruent and it prints home directory. is escape char required. And also in awk i have to pass the no to print a column. e.g awk '{print $Param}' (7 Replies)
Hi all,
I was wondering how can i see the special characters like \t, \n or anything else in a file by using Nano or any other linux command like less, more etc (6 Replies)
i need to replace the any special characters with escape characters like below.
test!=123-> test\!\=123
!@#$%^&*()-= to be replaced by
\!\@\#\$\%\^\&\*\(\)\-\= (8 Replies)
grep -i "$line,$opline" COMBO_JUNK|awk -F, '
{
C4+=$4
}
{
}
END {
print C4
}
' OFS=,`
when i run this command in the script.... it o/p all the value as 0 if $line contains any special parameters.....
but the same script if i run in command prompt... it shows... (4 Replies)
Hi
I have a scenario where hyphen(-) from file should be ignored
I used the following code
if && ; then
if ; then
pow=$LINE
echo $pow > history.txt
flag=1
fi
fi
I get the following output
./valid.sh: -: 0403-012 A test... (7 Replies)
Hello gurus,
I have a lookup table
cat tmp1
\\\erw``~ 1
^774574574565665f\] 2
()42543^
and I`m trying to compare a bunch of strings such that, either the lookup table column 1, or the string to be looked up are substrings of each other (and return the second lookup column if yes).
... (2 Replies)
Discussion started by: sheetalk
2 Replies
LEARN ABOUT REDHAT
script
SCRIPT(1) BSD General Commands Manual SCRIPT(1)NAME
script -- make typescript of terminal session
SYNOPSIS
script [-a] [-f] [-q] [-t] [file]
DESCRIPTION
Script makes a typescript of everything printed 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 all dialogue in file. If no file name is given, the typescript is saved in the file typescript.
Options:
-a Append the output to file or typescript, retaining the prior contents.
-f Flush output after each write. This is nice for telecooperation: One person does `mkfifo foo; script -f foo' and another can super-
vise real-time what is being done using `cat foo'.
-q Be quiet.
-t Output timeing data to standard error. 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.
The script ends when the forked shell exits (a control-D to exit 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.
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), replay(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.
Linux July 30, 2000 Linux