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Top Forums Shell Programming and Scripting Reading arguments for a shell script from file Post 302589729 by goddevil on Thursday 12th of January 2012 12:19:40 PM
Old 01-12-2012
I have run into problem.
I am using the following code to read from parameters.txt
Code:
while read x y
do
    ./shscript $x $y
done < parameters.txt

Code:
$ cat parameters.txt
env value1
env value2
env value3
env value4
env value5
env value6
env value7
env value8

This works perfectly.But if i make a small tweak to the code and include a if condition inside the while loop, only the alternate arguments are being read. For e.g, if i use the following code:
Code:
while read x y
do
    ./shscript $x $y
if [$y -gt 0 ] ; then
 echo The execution was successful
else
 echo Execution failed
fi
done < parameters.txt

The arguments that are passed to the shell are as follows
Code:
./shscript env value1
./shscript env value3
./shscript env value5
./shscript env value7

Can someone tell me why the alternate arguments are being missed? Thanks
 

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hx509 enviroment functions(3)					Heimdalx509library				     hx509 enviroment functions(3)

NAME
hx509 enviroment functions - Functions int hx509_env_add (hx509_context context, hx509_env *env, const char *key, const char *value) int hx509_env_add_binding (hx509_context context, hx509_env *env, const char *key, hx509_env list) const char * hx509_env_lfind (hx509_context context, hx509_env env, const char *key, size_t len) const char * hx509_env_find (hx509_context context, hx509_env env, const char *key) hx509_env hx509_env_find_binding (hx509_context context, hx509_env env, const char *key) void hx509_env_free (hx509_env *env) Detailed Description Function Documentation int hx509_env_add (hx509_context context, hx509_env * env, const char * key, const char * value) Add a new key/value pair to the hx509_env. Parameters: context A hx509 context. env enviroment to add the enviroment variable too. key key to add value value to add Returns: An hx509 error code, see hx509_get_error_string(). int hx509_env_add_binding (hx509_context context, hx509_env * env, const char * key, hx509_env list) Add a new key/binding pair to the hx509_env. Parameters: context A hx509 context. env enviroment to add the enviroment variable too. key key to add list binding list to add Returns: An hx509 error code, see hx509_get_error_string(). const char* hx509_env_find (hx509_context context, hx509_env env, const char * key) Search the hx509_env for a key. Parameters: context A hx509 context. env enviroment to add the enviroment variable too. key key to search for. Returns: the value if the key is found, NULL otherwise. hx509_env hx509_env_find_binding (hx509_context context, hx509_env env, const char * key) Search the hx509_env for a binding. Parameters: context A hx509 context. env enviroment to add the enviroment variable too. key key to search for. Returns: the binding if the key is found, NULL if not found. void hx509_env_free (hx509_env * env) Free an hx509_env enviroment context. Parameters: env the enviroment to free. const char* hx509_env_lfind (hx509_context context, hx509_env env, const char * key, size_t len) Search the hx509_env for a length based key. Parameters: context A hx509 context. env enviroment to add the enviroment variable too. key key to search for. len length of key. Returns: the value if the key is found, NULL otherwise. Version 1.5.2 11 Jan 2012 hx509 enviroment functions(3)
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