I'd rather edit with sed:
However, you can ksh-substring your variables like line: ${line#*.} is everything after the first dot, ${line##*.} is everything after the last dot, ${line%%.*} is everything before the first dot. My mnemonic is # is pound soft on the nose, %% is get a big percent in the end. The wild card metacharacters are shell file-glob like case, not regex as used in grep and sed.
I have a piece of code that I do not want to continuously repeat. I want to call script2 from script1 and pass a parameter. Here is an example:
Script1:
.......
nohup ./Script2 PARAMETER
.......
Script2:
if
# Checks if any params.
then
echo "No parameters passed to function."
... (4 Replies)
Hi,
Can i pass a parameter(not a file name) as a parameter to a awk program?
eg;
$awk -f test 1 2 3
here test is the filename...and 1,2,3 are the i/p parameters?
thank you:-) (2 Replies)
I would like to write a scirpt a.sh that it first checks the first parameter of the input. If it fulfill some condition ,then run an executable program b by using all the parameter.
ie.
> ./a.sh 10 20 30 40 50
Then a.sh first checks the first parameter, 10, if it mathes the requirement, then... (2 Replies)
I have something like
cp -p <dir>filename1.dat <dir2>filename1.dat
there are many other operations in it
I mean that filename1.dat will keep on changing
I need to write a subroutine so that i can pass filename1 or 2 or 3 .dat as parameter
Thanking you in advance
Any help wuld be appreciated (2 Replies)
Hi,
I am new in Ubuntu, I will be glud to know:
1. How to pass a parameter from the terminal to a file that I write in shell script. What is the command line I need to write in the terminal?
2. How to get the parameter in the file? What do I need to write in the file?
3. What kind of file is... (1 Reply)
Hi,
How to pass parameter to run folloing script?
#parameters are div, dept, style
U run_convert_pdm.ksh Mens 44 7542
U run_convert_pdm.ksh "Mens Knit" 44 7541
The first command works fine but the second needs to have two words together , it does not work even if
I have used double... (15 Replies)
My script(ksh) works fine for
---------------------------------------------------
sed -n '28,31p' ${l_name} >> ${LOG_DIR}/Email.txt
---------------------------------------------------
But I wand to pass parrmeter to this syntax
I did the following things ... (14 Replies)
Hi,
I have following for loop , please let me know how to get ${TXP_EXT_TABLE_${i}_SQL} parameter with 1DAY and 7DAY values.
for i in 1DAY 7DAY
do
${NZSQL_DIR}/nzsql -h ${HOST} -time -v ON_ERROR_STOP=1 -f ${SQL_DIR}/${TXP_EXT_TABLE_${i}_SQL} > ${TMP_LOG_FILE} 2>&1
done
... (4 Replies)
Discussion started by: sandy162
4 Replies
LEARN ABOUT PLAN9
grep
GREP(1) General Commands Manual GREP(1)NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). Normally, each line matching the pattern is `selected', and each selected line is copied to the standard output.
The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO ed(1), awk(1), sed(1), sam(1), regexp(6)DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)