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Shell Programming and Scripting
Question about Shebang line of Bash Script
Post 302896137 by in2nix4life on Friday 4th of April 2014 02:14:57 PM
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1. Shell Programming and Scripting
Do we need to include the exclamatory mark in the shebang line??:confused:
What if we dont include it??:eek:
Actually what shebang line implies when we run a script??
shebang line--> #!/bin/ksh :p (6 Replies)
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2. Shell Programming and Scripting
Can any one tell me how to replace a shebang line of a file using sed?
Eg: If a file contains the following shebang line
#!C:/InstantRails/ruby/bin/ruby
I would like to replace it with
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The shebang line of the file can be obtained from the command
cat... (3 Replies)
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3. Shell Programming and Scripting
#!/bin/ksh
echo -en "\033|||'-'))
echo -e "\033
The above script works fine when the interpreter is ksh, but outputs the following error when #!/bin/bash is used as shebang:
test.sh: line 5: syntax error near unexpected token `('
test.sh: line 5: `case "$ACTIVATION_KEY" in +(|||'-'))' (2 Replies)
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4. Shell Programming and Scripting
Hi,
As per my understanding, we can use two shebang statements in a single shell script. Please see below snippet-
#!/bin/bash
.......## some code A
#!/bin/csh
.......## some code B
exit 0;
Here, code A will be executed using bash shell and code B will be executed with c shell.
... (9 Replies)
Discussion started by: tarunmudgal4u
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5. Shell Programming and Scripting
Hi ,
I know about the shebang line in shell scripting. Just want to know whether is there any difference in execution of the program by keeping and not keeping the shebang line. Because without shebang line also the script is working. correct me if am wrong. Any help on this will be helpful (5 Replies)
Discussion started by: rogerben
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6. Shell Programming and Scripting
I would like to the the windws8/cygwin/bash shebang feature to start a powershell script.
I do a "chmod +x set-sound.ps1"
and then at a bash prompt I do
./set-sound.ps1
The first line of ./set-sound.ps1
#!powershell.exe -ExecutionPolicy unrestricted
The result is the result:
... (5 Replies)
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Hi All,
Am trying to write wrapper shell/bash script on a utility tool for which i need to pass 2 files as arugment to execute utility tool.
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8. Shell Programming and Scripting
Hello,
I'm works on Ubuntu server
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LEARN ABOUT OSX
env
ENV(1) BSD General Commands Manual ENV(1) NAME
env -- set and print environment SYNOPSIS
env [-i] [name=value ...] [utility [argument ...]] DESCRIPTION
env executes utility after modifying the environment as specified on the command line. The option name=value specifies an environmental variable, name, with a value of value. The option '-i' causes env to completely ignore the environment it inherits. If no utility is specified, env prints out the names and values of the variables in the environment, with one name=value pair per line. DIAGNOSTICS
If the utility is invoked, the exit status of env shall be the exit status of utility; otherwise, the env utility exits with one of the fol- lowing values: 0 The env utility completed successfully 1-125 An error occurred in the env utility. 126 The utility specified by utility was found, but could not be invoked. 127 The utility specified by utility could not be found. COMPATIBILITY
The historic - option has been deprecated but is still supported in this implementation. SEE ALSO
execvp(3), environ(7) STANDARDS
The env utility conforms to IEEE Std 1003.2-1992 (``POSIX.2''). BUGS
env doesn't handle commands with equal (``='') signs in their names, for obvious reasons. BSD
August 27, 1993 BSD