sed doubt - search and substitute string from variable.
hi,
trying to learn more abt sed
i want to substitute a variable(a) with other variable(b) appended.
Read.txt contains:
Code:
home/test2/abc
home/test/root1
input.txt contains:
Code:
make test "home/test1/none"version="1.3"
wt's wrong test "home/test2/abc"version="1.0"
make save "home/test/root1"version="1.2"
make try "home/test3/user1"version="1.4"
code tried:
Code:
a=`cat read.txt`
for i in $a
do
b=_EDITED
sed -e "/$a/s///$a/$b/" input.txt
done
expected output:
Code:
make test "home/test1/none"version="1.3"
wt's wrong test "home/test2/abc_EDITED"version="1.0"
make save "home/test/root1_EDITED"version="1.2"
make try "home/test3/user1"version="1.4"
Thanks in advance
Last edited by dragon.1431; 09-22-2010 at 06:05 PM..
Reason: removed extra code tags
Hi, guys. I have one question:
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For example:
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...
ftp:x:23:
mail:x:34
...
testing:x:2001
sales:x:2002
development:x:2003
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7 Replies
LEARN ABOUT PHP
apd_breakpoint
APD_BREAKPOINT(3) 1 APD_BREAKPOINT(3)apd_breakpoint - Stops the interpreter and waits on a CR from the socketSYNOPSIS
bool apd_breakpoint (int $debug_level)
DESCRIPTION
This can be used to stop the running of your script, and await responses on the connected socket. To step the program, just send enter (a
blank line), or enter a php command to be executed.
PARAMETERS
o $
debug_level -An integer which is formed by adding together the XXX_TRACE constants.It is not recommended to use MEMORY_TRACE. It
is very slow and does not appear to be accurate. ASSIGNMENT_TRACE is not implemented yet.To turn on all functional traces (TIM-
ING, FUNCTIONS, ARGS SUMMARY (like strace -c)) use the value 99
RETURN VALUES
Returns TRUE on success or FALSE on failure.
EXAMPLES
Example #1
Typical session using tcplisten
bash#tcplisten localhost 7777
APD - Advanced PHP Debugger Trace File
---------------------------------------------------------------------------
Process Pid (6118)
Trace Begun at Sun Mar 10 23:13:12 2002
---------------------------------------------------------------------------
( 0.000000): apd_set_session_trace called at /home/alan/Projects/project2/test.
php:5
( 0.074824): apd_set_session_trace_socket() at /home/alan/Projects/project2/tes
t.php:5 returned. Elapsed (0.074824)
( 0.074918): apd_breakpoint() /home/alan/Projects/project2/test.php:7
++ argv[0] $(??) = 9
apd_breakpoint() at /home/alan/Projects/project2/test.php:7 returned. Elapsed (
-2089521468.1073275368)
>
statement: /home/alan/Projects/project2/test.php:8
>
statement: /home/alan/Projects/project2/test.php:8
>
statement: /home/alan/Projects/project2/test.php:10
>apd_echo($i);
EXEC: apd_echo($i);
0
>apd_echo(serialize(apd_get_active_symbols()));
EXEC: apd_echo(serialize(apd_get_active_symbols()));
a:47:{i:0;s:4:"PWD";i:1;s:10:"COLORFGBG";i:2;s:11:"XAUTHORITY";i:3;s:14:"
COLORTERM_BCE";i:4;s:9:"WINDOWID";i:5;s:14:"ETERM_VERSION";i:6;s:16:"SE
SSION_MANAGER";i:7;s:4:"PS1";i:8;s:11:"GDMSESSION";i:9;s:5:"USER";i:10;s:5:"
MAIL";i:11;s:7:"OLDPWD";i:12;s:5:"LANG";i:13;s:10:"COLORTERM";i:14;s:8:"DISP
LAY";i:15;s:8:"LOGNAME";i:16;s:6:"
>apd_echo(system('ls /home/mydir'));
>apd_continue(0);
PHP Documentation Group APD_BREAKPOINT(3)
09-22-2010
sed doubt - search and substitute string from variable.
