echo $?可以获取上一条命令的exit code。 但是如果bash脚本中设置了set -e,那么如果命令的exit code不为0,当前bash脚本会直接退出。这种情况下如果要获取命令的exit code而不退出,需要让该命令在一个新的shell中执行: set -e ret=$(bash -c 'bash test2.sh; echo $?') echo $ret...
/bin/bashfunctiontest_func(){echo"Current $FUNCNAME, \$FUNCNAME => (${FUNCNAME[@]})"another_func echo"Current $FUNCNAME, \$FUNCNAME => (${FUNCNAME[@]})"}functionanother_func(){echo"Current $FUNCNAME, \$FUNCNAME => (${FUNCNAME[@]})"}echo"Out of function, \$FUNCNAME => (...
test [ : test的另一种写法 [[ 双层方括号/双重方括号/双 方括号 false true if 某某 ; then 某某 ; fi 位运算 逻辑运算 echo $(( 0&&5 )) #有一个为零(false) 结果是0 echo $(( b && 5 )) # 其中b不是数字,为false 结果是0 status code exit status(sometimes referred to as aretu...
In your build or test suites While ShellCheck is mostly intended for interactive use, it can easily be added to builds or test suites. It makes canonical use of exit codes, so you can just add ashellcheckcommand as part of the process. For example, in a Makefile: check-scripts:# Fail ...
...如果在Python脚本中按原样放置ls ,则在运行程序时将得到以下内容: Traceback (most recent call last): File "test.py", line 1, in...os.system() 解决此问题的一种方法是使用Python的os模块中的os.system() 。 如文档中所述, os.system() : 在子外壳程序中执行命令(字符串)。...因此,我们...
# test code if ! grep -wq 'Code violates rules' .git/hooks/pre-commit; thencat >> .git/hooks/pre-commit <<'GIT_PRE_COMMIT_EOF' #!/usr/bin/env bashif find . -name '*.sh'| xargs pcregrep '^\s+local\s+\w+="?(`|\$\()'; then echo...
echo -n "this is test2." # output: this is test1.this is test2. echo "test. \n test." # output: test. \n test. # 启用转义字符解释 echo -e "test. \n test." # output: test. # test. 双引号和单引号的区别: 单引号: 将内容原样输出, 不进行解析. 双引号: 将内容解析后输出...
add#skipbashtestsupport ** 0.0.7 ** fix! remove ugly and useless options feat! Test README.rst#4 feat! find *.bashtest by default#3 ** 0.0.6 ** fix! bad command escaping bug#5 $ bashtest --help usage: bashtest [-h] [--exitcode] [-v] [-q] [--debug] [--version] [fil...
if test $i == 4; then z=1 fi done if [[ $z == 1 ]]; then exit 1 fi With files #!/bin/bash touch ab c d e for i in a b c d e; do cat $i if [[ $? -ne 0 ]]; then fail=1 fi done if [[ $fail == 1 ]]; then ...
## 不用快捷键cat>>/tmp/test<<_EOF##这里是内容##最后我们要在新行里面输入_EOF##cat见到_EOF才会将内容写到文件中##使用快捷键cat>>/tmp/test##这里输入内容##输入完毕之后,直接[CTRL-D]结束 有的时候我们需要创建一个文件,而后对这个文件进行操作: ...