I am trying to run this script I found in a book:
#!/bin/bash
# copydir.sh
E_NOARGS=85
if [ -z "$1" ]
then
echo "Usage: `basename $0` directory-to-copy-to"
exit $E_NOARGS
fi
ls . | xargs -i -t cp ./{} $1
exit 0
I want to copy a text file from desktop to the home dir using this script, but every time I insert the source argument it ignores it and starts copying the whole ubuntu folder to my home dir. I am running bash on windows 10, and as I said I am a total newbie. If anyone could help and tell me how to pass the source and copy-to dir argument to this script I would be thankful.
Related
I am completely new to Bash scripting so bare with me while I try to describe this.
What I want to do be able to insert two arguments.
Arg1=Sub Folder in Documents
Arg2=Title of the text file
Using Ubuntu 20.10. (If that matters)
In short: kate ~/Documents/$Arg1/$Arg2 would be the equivalent to the command I would enter into my terminal.
The extra catch is having a keyword shortcut for the Sub Folder. For example say the Sub folder was name SUPERLONGNAME_EXTRALONG but I want a shortcut such as SHORTNAME=SUPERLONGNAME_EXTRALONG
#!/bin/sh
newfile()
dirname=$1
filename=$2
if $dirname==dir1
dirname=newdirname
fi
kate ~/Documents/$dirname/$filename
This is basically what I have now. Although as you would guess this doesn't work. (Provided for aid in seeing what I am trying to do). I can open kate within the home directory with the file name of my choice. My real issue seems to be the creating a shortcut keyword. As well as having the file save to the Document/Arg1 directory. Please help.
I run the command through terminal using
sh newfile arg1 arg2
Use an associate array shortnames to optionally translate from long to short names. Verify that file and directory exist:
#!/bin/bash
declare -A shortnames=(
[long]="short"
)
d=$1
f=$2
if [ -z "$d" ]
then
echo directory required
exit 1
fi
if [ -n "${shortnames[$d]}" ]
then
d=${shortnames[$d]}
fi
d=~/Documents/$d
if [ ! -d "$d" ]
then
echo "directory $d does not exist"
exit 1
fi
if [ -z "$f" ]
then
echo file required
exit 1
fi
kate "$d/$f"
This is my code that I made to copy all fd data to the home/user directory with bash shell
#!/bin/sh
user=$(whoami)
now=$(date +"%d.%m.%Y_%H.%M.%S")
dir=$(mkdir $now) --> and here I want to create a folder as a place to copy the results according to datetime
if [ -d /media/$user/foo ]
then
echo "any media"
cp -r /media/$user /home/$user/$dir
else
echo "none of media attached"
fi
but i run thats code, cp -r /media/$user /home/$user/$dir not running as well, which is not copied to the newly created directory based on datetime , any advice ? or
something's wrong in my code ?
I suggest to replace
dir=$(mkdir $now)
with
mkdir "$now" || exit 1
dir="$now"
This will terminate your script if there is a problem with the directory creation.
I've written bash script to open a file passed as an argument and write it into another file. But my script will work properly only if the file is in the current directory. Now I need to open and write the file that is not in the current directory also.
If compile is the name of my script, then ./compile next/123/file.txt should open the file.txt in the passed path. How can I do it?
#!/bin/sh
#FIRST SCRIPT
clear
echo "-----STARTING COMPILATION-----"
#echo $1
name=$1 # Copy the filename to name
find . -iname $name -maxdepth 1 -exec cp {} $name \;
new_file="tempwithfile.adb"
cp $name $new_file #copy the file to new_file
echo "compiling"
dir >filelist.txt
gcc writefile.c
run_file="run_file.txt"
echo $name > $run_file
./a.out
echo ""
echo "cleaning"
echo ""
make clean
make -f makefile
./semantizer -da <withfile.adb
Your code and your question are a bit messy and unclear.
It seems that you intended to find your file, given as a parameter to your script, but failed due to the maxdepth.
If you are given next/123/file.txt as an argument, your find gives you a warning:
find: warning: you have specified the -maxdepth option after a
non-option argument -iname, but options are not positional (-maxdepth
affects tests specified before it as well as those specified after
it). Please specify options before other arguments.
Also -maxdepth gives you the depth find will go to find your file until it quits. next/123/file.txt has a depth of 2 directories.
Also you are trying to copy the given file within find, but also copied it using cp afterwards.
As said, your code is really messy and I don't know what you are trying to do. I will gladly help, if you could elaborate :).
There are some questions that are open:
Why do you have to find the file, if you already know its path? Do you always have the whole path given as an argument? Or only part of the path? Only the basename ?
Do you simply want to copy a file to another location?
What does your writefile.c do? Does it write the content of your file to another? cp does that already.
I also recommend using variables with CAPITALIZED letters and checking the exit status of used commands like cp and find, to check if these failed.
Anyway, here is my script that might help you:
#!/bin/sh
#FIRST SCRIPT
clear
echo "-----STARTING COMPILATION-----"
echo "FILE: $1"
[ $# -ne 1 ] && echo "Usage: $0 <file>" 1>&2 && exit 1
FILE="$1" # Copy the filename to name
FILE_NEW="tempwithfile.adb"
cp "$FILE" "$FILE_NEW" # Copy the file to new_file
[ $? -ne 0 ] && exit 2
echo
echo "----[ COMPILING ]----"
echo
dir &> filelist.txt # list directory contents and write to filelist.txt
gcc writefile.c # ???
FILE_RUN="run_file.txt"
echo "$FILE" > "$FILE_RUN"
./a.out
echo
echo "----[ CLEANING ]----"
echo
make clean
make -f makefile
./semantizer -da < withfile.adb
This question already has answers here:
Why can't I change directories using "cd" in a script?
(33 answers)
Closed 7 years ago.
What I'm trying to do
I've created a shell script that I've added to my $PATH that will download and get everything setup for a new Laravel project. I would like the script to end by changing my terminal directory into the new project folder.
From what I understand right now currently it's only changing the directory of the sub shell where the script is actually running. I can't seem to figure out how to do this. Any help is appreciated. Thank you!
#! /usr/bin/env bash
echo -e '\033[1;30m=========================================='
## check for a directory
if test -z "$1"; then
echo -e ' \033[0;31m✖ Please provide a directory name'
exit
fi
## check if directory already exist
if [ ! -d $1 ]; then
mkdir $1
else
echo -e ' \033[0;31m✖ The '"$1"' directory already exists'
exit
fi
# move to directory
cd $1
## Download Laravel
echo -e ' \033[0;32m+ \033[0mDownloading Laravel...'
curl -s -L https://github.com/laravel/laravel/zipball/master > laravel.zip
## Unzip, move, and clean up Laravel
echo -e ' \033[0;32m+ \033[0mUnzipping and cleaning up files...'
unzip -q laravel.zip
rm laravel.zip
cd *-laravel-*
mv * ..
cd ..
rm -R *-laravel-*
## Make the /storage directory writable
echo -e ' \033[0;32m+ \033[0mMaking /storage directory writable...'
chmod -R o+w storage
## Download and install the Generators
echo -e ' \033[0;32m+ \033[0mInstalling Generators...'
curl -s -L https://raw.github.com/JeffreyWay/Laravel-Generator/master/generate.php > application/tasks/generate.php
## Update the application key
echo -e ' \033[0;32m+ \033[0mUpdating Application Key...'
MD5=`date +”%N” | md5`
sed -ie 's/YourSecretKeyGoesHere!/'"$MD5"'/' application/config/application.php
rm application/config/application.phpe
## Create .gitignore and initial git if -git is passed
if [ "$2" == "-git" ]; then
echo -e ' \033[0;32m+ \033[0mInitiating git...'
touch .gitignore
curl -s -L https://raw.github.com/gist/4223565/be9f8e85f74a92c95e615ad1649c8d773e908036/.gitignore > .gitignore
# Create a local git repo
git init --quiet
git add * .gitignore
git commit -m 'Initial commit.' --quiet
fi
echo -e '\033[1;30m=========================================='
echo -e ' \033[0;32m✔ Laravel Setup Complete\033[0m'
## Change parent shell directory to new directory
## Currently it's only changing in the sub shell
filepath=`pwd`
cd "$filepath"
You can technically source your script to run it in your parent shell instead of spawning a subshell to run it. This way whatever changes you make to your current shell (including changing directories) persist.
source /path/to/my/script/script
or
. /path/to/my/script/script
But sourcing has its own dangers, use carefully.
(Peripherally related: how to use scripts to change directories)
Use a shell function to front-end your script
setup () {
# first, call your big script.
# (It could be open-coded here but that might be a bit ugly.)
# then finally...
cd someplace
}
Put the shell function in a shell startup file.
Child processes (including shells) cannot change current directory of parent process. Typical solution is using eval in the parent shell. In shell script echo commands you want to run by parent shell:
echo "cd $filepath"
In parent shell, you can kick the shell script with eval:
eval `sh foo.sh`
Note that all standard output will be executed as shell commands. Messages should output to standard error:
echo "Some messages" >&2
command ... >&2
This can't be done. Use exec to open a new shell in the appropriate directory, replacing the script interpreter.
exec bash
I suppose one possibility would be to make sure that the only output of your script is the path name you want to end up in, and then do:
cd `/path/to/my/script`
There's no way your script can directly affect the environment (including it's current directory) of its parent shell, but this would request that the parent shell itself change directories based on the output of the script...
I am attempting to write a bash script that changes directory and then runs an existing script in the new working directory.
This is what I have so far:
#!/bin/bash
cd /path/to/a/folder
./scriptname
scriptname is an executable file that exists in /path/to/a/folder - and (needless to say), I do have permission to run that script.
However, when I run this mind numbingly simple script (above), I get the response:
scriptname: No such file or directory
What am I missing?! the commands work as expected when entered at the CLI, so I am at a loss to explain the error message. How do I fix this?
Looking at your script makes me think that the script you want to launch a script which is locate in the initial directory. Since you change you directory before executing it won't work.
I suggest the following modified script:
#!/bin/bash
SCRIPT_DIR=$PWD
cd /path/to/a/folder
$SCRIPT_DIR/scriptname
cd /path/to/a/folder
pwd
ls
./scriptname
which'll show you what it thinks it's doing.
I usually have something like this in my useful script directory:
#!/bin/bash
# Provide usage information if not arguments were supplied
if [[ "$#" -le 0 ]]; then
echo "Usage: $0 <executable> [<argument>...]" >&2
exit 1
fi
# Get the executable by removing the last slash and anything before it
X="${1##*/}"
# Get the directory by removing the executable name
D="${1%$X}"
# Check if the directory exists
if [[ -d "$D" ]]; then
# If it does, cd into it
cd "$D"
else
if [[ "$D" ]]; then
# Complain if a directory was specified, but does not exist
echo "Directory '$D' does not exist" >&2
exit 1
fi
fi
# Check if the executable is, well, executable
if [[ -x "$X" ]]; then
# Run the executable in its directory with the supplied arguments
exec ./"$X" "${#:2}"
else
# Complain if the executable is not a valid
echo "Executable '$X' does not exist in '$D'" >&2
exit 1
fi
Usage:
$ cdexec
Usage: /home/archon/bin/cdexec <executable> [<argument>...]
$ cdexec /bin/ls ls
ls
$ cdexec /bin/xxx/ls ls
Directory '/bin/xxx/' does not exist
$ cdexec /ls ls
Executable 'ls' does not exist in '/'
One source of such error messages under those conditions is a broken symlink.
However, you say the script works when run from the command line. I would also check to see whether the directory is a symlink that's doing something other than what you expect.
Does it work if you call it in your script with the full path instead of using cd?
#!/bin/bash
/path/to/a/folder/scriptname
What about when called that way from the command line?