shell script positional parameters have to be inside double quotes and singe quotes when using the sed.
below is code:
I think you confused all of us with the references to vi when you are not using vi at all.
Your sed command is doing a lot of unnecessary switching between single quotes and double quotes. You can get exactly the same results as the sed command above just using:
With the values you're using in this example, no quotes are needed at all. But if $table_name or $schema_name could expand to strings containing whitespace characters or characters that could have special meaning to the shell if they aren't quoted, the double quotes protect you in that case. The key point is that the shell doesn't expand variables inside single quotes, so you have to use double quotes instead of single quotes if you want sed to see the table_name and schema_name variables expanded in your sed substitute command.
Hello all,
I have a weird issue when trying to substitute the slashes into backslashes.
If I execute this on the command-line (bash / ksh) I get the path correctly translated with backslashes instead of slashes.
> echo $PWD | sed 's/\//\\/g'
However, when I put this in my script to... (3 Replies)
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Hello experts,
I know line number of the word I want to replace. Can "sed" substitute word on a specific line?
As well, can sed substitute words inside a specific patten.
ex. <word>lalala</word> #replace anything between <word> and </word>
minifish (2 Replies)
Hey all,
I am trying to disable a certain cronjob before I run a backup. I want to be able to add/remove a "#" from the beginning on the crontab line it is located on.
Here is the crontab:
46 11 * * * /etc/webmin/cron/tempdelete.pl
@daily /etc/webmin/time/sync.pl
*/5 * * * *... (4 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
logs:
"/home/abc/public_html/index.php"
"/home/abc/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
"/home/xyz/public_html/index.php"
how to use "cut" or "awk" or "sed" to get the following result:
abc
abc
xyz
xyz
xyz (8 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
SUSE linux
bash shell
this works
test -d /tmpp && echo "directory exists" || echo "directory doesn't exists" |sed -e "s/^/prefix /"
prefix directory doesn't exists
but why doesn't this work?
test -d /tmp && echo "directory exists" || echo "directory doesn't exists" |sed -e... (3 Replies)
Discussion started by: snoman1
3 Replies
LEARN ABOUT OPENDARWIN
form_driver
form_driver(3X)form_driver(3X)NAME
form_driver - command-processing loop of the form system
SYNOPSIS
#include <form.h>
int form_driver(FORM *form, int c);
DESCRIPTION
Once a form has been posted (displayed), you should funnel input events to it through form_driver. This routine has two major input cases;
either the input is a form navigation request or it's a printable ASCII character. The form driver requests are as follows:
REQ_NEXT_PAGE
Move to the next page.
REQ_PREV_PAGE
Move to the previous page.
REQ_FIRST_PAGE
Move to the first page.
REQ_LAST_PAGE
Move to the last field.
REQ_NEXT_FIELD
Move to the next field.
REQ_PREV_FIELD
Move to the previous field.
REQ_FIRST_FIELD
Move to the first field.
REQ_LAST_FIELD
Move to the last field.
REQ_SNEXT_FIELD
Move to the sorted next field.
REQ_SPREV_FIELD
Move to the sorted previous field.
REQ_SFIRST_FIELD
Move to the sorted first field.
REQ_SLAST_FIELD
Move to the sorted last field.
REQ_LEFT_FIELD
Move left to a field.
REQ_RIGHT_FIELD
Move right to a field.
REQ_UP_FIELD
Move up to a field.
REQ_DOWN_FIELD
Move down to a field.
REQ_NEXT_CHAR
Move to the next char.
REQ_PREV_CHAR
Move to the previous char.
REQ_NEXT_LINE
Move to the next line.
REQ_PREV_LINE
Move to the previous line.
REQ_NEXT_WORD
Move to the next word.
REQ_PREV_WORD
Move to the previous word.
REQ_BEG_FIELD
Move to the beginning of the field.
REQ_END_FIELD
Move to the end of the field.
REQ_BEG_LINE
Move to the beginning of the line.
REQ_END_LINE
Move to the end of the line.
REQ_LEFT_CHAR
Move left in the field.
REQ_RIGHT_CHAR
Move right in the field.
REQ_UP_CHAR
Move up in the field.
REQ_DOWN_CHAR
Move down in the field.
REQ_NEW_LINE
Insert or overlay a new line.
REQ_INS_CHAR
Insert a blank at the cursor.
REQ_INS_LINE
Insert a blank line at the cursor.
REQ_DEL_CHAR
Delete character at the cursor.
REQ_DEL_PREV
Delete character before the cursor.
REQ_DEL_LINE
Delete line at the cursor.
REQ_DEL_WORD
Delete blank-delimited word at the cursor.
REQ_CLR_EOL
Clear to end of line from cursor.
REQ_CLR_EOF
Clear to end of field from cursor.
REQ_CLR_FIELD
Clear the entire field.
REQ_OVL_MODE
Enter overlay mode.
REQ_INS_MODE
Enter insert mode.
REQ_SCR_FLINE
Scroll the field forward a line.
REQ_SCR_BLINE
Scroll the field backward a line.
REQ_SCR_FPAGE
Scroll the field forward a page.
REQ_SCR_BPAGE
Scroll the field backward a page.
REQ_SCR_FHPAGE
Scroll the field forward half a page.
REQ_SCR_BHPAGE
Scroll the field backward half a page.
REQ_SCR_FCHAR
Scroll the field forward a character.
REQ_SCR_BCHAR
Scroll the field backward a character.
REQ_SCR_HFLINE
Horizontal scroll the field forward a line.
REQ_SCR_HBLINE
Horizontal scroll the field backward a line.
REQ_SCR_HFHALF
Horizontal scroll the field forward half a line.
REQ_SCR_HBHALF
Horizontal scroll the field backward half a line.
REQ_VALIDATION
Validate field.
REQ_NEXT_CHOICE
Display next field choice.
REQ_PREV_CHOICE
Display previous field choice.
If the second argument is a printable ASCII character, the driver places it in the current position in the current field. If it is one of
the forms requests listed above, that request is executed.
If the second argument is neither printable ASCII nor one of the above pre-defined form requests, the driver assumes it is an application-
specific command and returns E_UNKNOWN_COMMAND. Application-defined commands should be defined relative to MAX_COMMAND, the maximum value
of these pre-defined requests.
RETURN VALUE
form_driver return one of the following error codes:
E_OK The routine succeeded.
E_SYSTEM_ERROR
System error occurred (see errno).
E_BAD_ARGUMENT
Routine detected an incorrect or out-of-range argument.
E_BAD_STATE
Routine was called from an initialization or termination function.
E_NOT_POSTED
The form has not been posted.
E_UNKNOWN_COMMAND
The form driver code saw an unknown request code.
E_INVALID_FIELD
Contents of field is invalid.
E_REQUEST_DENIED
The form driver could not process the request.
SEE ALSO curses(3X), form(3X).
NOTES
The header file <form.h> automatically includes the header files <curses.h>.
PORTABILITY
These routines emulate the System V forms library. They were not supported on Version 7 or BSD versions.
AUTHORS
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond.
form_driver(3X)