Use the grep command to split the string and get the last element in Bash. Use grep Command 1 2 3 4 5 6 #!/bin/bash myString="some text with spaces" lastElement=$(echo $myString | grep -oE '[^ ]+$') echo "The last element is: $lastElement" Output 1 2 3 The last...
-b或--bytes 以Byte为单位计算列宽,而非采用行数编号为单位。 -s或--spaces 以空格字符作为换列点。 -w<每列行数>或--width<每列行数> 设置每列的最大行数。 --help 在线帮助。 --version 显示版本信息。 4 提取文本开头和结尾 4.1 head head [ -Count | -n Count | -c Count ] 默认显示前10...
If IFS is null or unset, the parameters are separated by spaces. @ Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, each parameter expands as a separate word. That is, `` $@'' is equivalent to ``$1'' ``$2'' ... When there ...
A simple shell command such asecho a b cconsists of the command itself followed by arguments, separated by spaces. More complex shell commands are composed of simple commands arranged together in a variety of ways: in a pipeline in which the output of one command becomes the input of a sec...
# split by spaces string="1 2 3 4 5" declare -a array=($string) # split by custom character string="1,2,3,4,5" delimiter="," declare -a array=($(echo $string | tr "$delimiter" " ")) Push items into array SRC=/home/usernamehere/Downloads/vidz/* for INTRO in $SRC do in...
You may also simply be looking to split a sentence into words at the spaces, or split paragraphs into sentences at the period, and so on. Many solutions focus on Bash-specific methods of splitting strings. Below, I’ll outline a method that should work in any Linux shell script. ...
The fields are separated by spaces, not TABs. Since we need the first field, we can get away with using a space as the field separator in the cut command. (Otherwise we’d have to use the option to cut that uses character columns instead of fields.) To provide a space character as ...
A local variable can be declared using = sign (as a rule, there should not be any spaces between a variable's name, = and its value) and its value can be retrieved using the $ sign. For example:username="denysdovhan" # declare variable echo $username # display value unset username #...
split(1g) sql(1) squidclient(1) srchtxt(1) ssh-add(1) ssh-agent(1) ssh-http-proxy-connect(1) ssh-keygen(1) ssh-keyscan(1) ssh-socks5-proxy-connect(1) ssh(1) start(1) start_erl(1) start_webtool(1) startx(1) stat(1) states(1) stdbuf(1) stdpods(1) stop(1) strchg(...
parameters are separated by spaces. If IFS is null, the parameters are joined without intervening separators. @ Expands to the positional parameters, starting from one. When the expansion occurs within double quotes, each parameter expands to a separate word. That is, "$@" is ...